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Finding the Fourth Proportional to 659,303.40, 988,955.10 and 160,671.72

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Solution

The fourth proportional to 659,303.40, 988,955.10 and 160,671.72 is: 241,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,303.40 : 988,955.10 = 160,671.72 : x
  2. Step 2: Convert to fraction form
    659,303.40/988,955.10 = 160,671.72/x
  3. Step 3: Cross multiply
    659,303.40x = 988,955.10 × 160,671.72
  4. Step 4: Simplify right side
    659,303.40x = 158,897,116,919.77
  5. Step 5: Solve for x
    x = 158,897,116,919.77/659,303.40
  6. Step 6: Final answer
    x = 241,007.58

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.