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Finding the Fourth Proportional to 245,722.10, 368,583.15 and 87,955.70

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Solution

The fourth proportional to 245,722.10, 368,583.15 and 87,955.70 is: 131,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,722.10 : 368,583.15 = 87,955.70 : x
  2. Step 2: Convert to fraction form
    245,722.10/368,583.15 = 87,955.70/x
  3. Step 3: Cross multiply
    245,722.10x = 368,583.15 × 87,955.70
  4. Step 4: Simplify right side
    245,722.10x = 32,418,988,966.46
  5. Step 5: Solve for x
    x = 32,418,988,966.46/245,722.10
  6. Step 6: Final answer
    x = 131,933.55

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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.