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Finding the Fourth Proportional to 508,038.12, 762,141.42 and 171,107.28

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Solution

The fourth proportional to 508,038.12, 762,141.42 and 171,107.28 is: 256,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,038.12 : 762,141.42 = 171,107.28 : x
  2. Step 2: Convert to fraction form
    508,038.12/762,141.42 = 171,107.28/x
  3. Step 3: Cross multiply
    508,038.12x = 762,141.42 × 171,107.28
  4. Step 4: Simplify right side
    508,038.12x = 130,407,945,351.54
  5. Step 5: Solve for x
    x = 130,407,945,351.54/508,038.12
  6. Step 6: Final answer
    x = 256,689.29

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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.