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Finding the Fourth Proportional to 539,637.45, 809,315.10 and 160,456.07

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Solution

The fourth proportional to 539,637.45, 809,315.10 and 160,456.07 is: 240,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,637.45 : 809,315.10 = 160,456.07 : x
  2. Step 2: Convert to fraction form
    539,637.45/809,315.10 = 160,456.07/x
  3. Step 3: Cross multiply
    539,637.45x = 809,315.10 × 160,456.07
  4. Step 4: Simplify right side
    539,637.45x = 129,859,516,291.08
  5. Step 5: Solve for x
    x = 129,859,516,291.08/539,637.45
  6. Step 6: Final answer
    x = 240,642.15

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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.