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Finding the Fourth Proportional to 340,073.28, 469,303.86 and 189,170.28

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Solution

The fourth proportional to 340,073.28, 469,303.86 and 189,170.28 is: 261,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,073.28 : 469,303.86 = 189,170.28 : x
  2. Step 2: Convert to fraction form
    340,073.28/469,303.86 = 189,170.28/x
  3. Step 3: Cross multiply
    340,073.28x = 469,303.86 × 189,170.28
  4. Step 4: Simplify right side
    340,073.28x = 88,778,342,601.28
  5. Step 5: Solve for x
    x = 88,778,342,601.28/340,073.28
  6. Step 6: Final answer
    x = 261,056.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.