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Finding the Fourth Proportional to 539,542.71, 809,313.53 and 160,461.90

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Solution

The fourth proportional to 539,542.71, 809,313.53 and 160,461.90 is: 240,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,542.71 : 809,313.53 = 160,461.90 : x
  2. Step 2: Convert to fraction form
    539,542.71/809,313.53 = 160,461.90/x
  3. Step 3: Cross multiply
    539,542.71x = 809,313.53 × 160,461.90
  4. Step 4: Simplify right side
    539,542.71x = 129,863,985,917.20
  5. Step 5: Solve for x
    x = 129,863,985,917.20/539,542.71
  6. Step 6: Final answer
    x = 240,692.69

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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.