Home / 402,134.16-554,945.82-220,857.78

Finding the Fourth Proportional to 402,134.16, 554,945.82 and 220,857.78

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Solution

The fourth proportional to 402,134.16, 554,945.82 and 220,857.78 is: 304,784.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,134.16 : 554,945.82 = 220,857.78 : x
  2. Step 2: Convert to fraction form
    402,134.16/554,945.82 = 220,857.78/x
  3. Step 3: Cross multiply
    402,134.16x = 554,945.82 × 220,857.78
  4. Step 4: Simplify right side
    402,134.16x = 122,564,101,825.48
  5. Step 5: Solve for x
    x = 122,564,101,825.48/402,134.16
  6. Step 6: Final answer
    x = 304,784.11

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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.