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Finding the Fourth Proportional to 539,318.30, 809,269.05 and 223,807.10

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Solution

The fourth proportional to 539,318.30, 809,269.05 and 223,807.10 is: 335,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,318.30 : 809,269.05 = 223,807.10 : x
  2. Step 2: Convert to fraction form
    539,318.30/809,269.05 = 223,807.10/x
  3. Step 3: Cross multiply
    539,318.30x = 809,269.05 × 223,807.10
  4. Step 4: Simplify right side
    539,318.30x = 181,120,159,200.26
  5. Step 5: Solve for x
    x = 181,120,159,200.26/539,318.30
  6. Step 6: Final answer
    x = 335,831.66

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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.