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Finding the Fourth Proportional to 539,637.70, 809,315.49 and 160,456.32

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Solution

The fourth proportional to 539,637.70, 809,315.49 and 160,456.32 is: 240,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,637.70 : 809,315.49 = 160,456.32 : x
  2. Step 2: Convert to fraction form
    539,637.70/809,315.49 = 160,456.32/x
  3. Step 3: Cross multiply
    539,637.70x = 809,315.49 × 160,456.32
  4. Step 4: Simplify right side
    539,637.70x = 129,859,785,244.40
  5. Step 5: Solve for x
    x = 129,859,785,244.40/539,637.70
  6. Step 6: Final answer
    x = 240,642.54

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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.