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Finding the Fourth Proportional to 539,760.17, 809,640.16 and 160,686.45

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Solution

The fourth proportional to 539,760.17, 809,640.16 and 160,686.45 is: 241,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,760.17 : 809,640.16 = 160,686.45 : x
  2. Step 2: Convert to fraction form
    539,760.17/809,640.16 = 160,686.45/x
  3. Step 3: Cross multiply
    539,760.17x = 809,640.16 × 160,686.45
  4. Step 4: Simplify right side
    539,760.17x = 130,098,202,686.12
  5. Step 5: Solve for x
    x = 130,098,202,686.12/539,760.17
  6. Step 6: Final answer
    x = 241,029.64

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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.