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Finding the Fourth Proportional to 545,356.48, 817,641.04 and 229,641.12

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Solution

The fourth proportional to 545,356.48, 817,641.04 and 229,641.12 is: 344,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,356.48 : 817,641.04 = 229,641.12 : x
  2. Step 2: Convert to fraction form
    545,356.48/817,641.04 = 229,641.12/x
  3. Step 3: Cross multiply
    545,356.48x = 817,641.04 × 229,641.12
  4. Step 4: Simplify right side
    545,356.48x = 187,764,004,183.57
  5. Step 5: Solve for x
    x = 187,764,004,183.57/545,356.48
  6. Step 6: Final answer
    x = 344,295.91

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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.