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Finding the Fourth Proportional to 402,222.52, 555,042.54 and 220,899.16

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Solution

The fourth proportional to 402,222.52, 555,042.54 and 220,899.16 is: 304,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,222.52 : 555,042.54 = 220,899.16 : x
  2. Step 2: Convert to fraction form
    402,222.52/555,042.54 = 220,899.16/x
  3. Step 3: Cross multiply
    402,222.52x = 555,042.54 × 220,899.16
  4. Step 4: Simplify right side
    402,222.52x = 122,608,430,850.27
  5. Step 5: Solve for x
    x = 122,608,430,850.27/402,222.52
  6. Step 6: Final answer
    x = 304,827.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.