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Finding the Fourth Proportional to 545,354.48, 817,638.04 and 229,639.12

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Solution

The fourth proportional to 545,354.48, 817,638.04 and 229,639.12 is: 344,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,354.48 : 817,638.04 = 229,639.12 : x
  2. Step 2: Convert to fraction form
    545,354.48/817,638.04 = 229,639.12/x
  3. Step 3: Cross multiply
    545,354.48x = 817,638.04 × 229,639.12
  4. Step 4: Simplify right side
    545,354.48x = 187,761,679,984.13
  5. Step 5: Solve for x
    x = 187,761,679,984.13/545,354.48
  6. Step 6: Final answer
    x = 344,292.91

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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.