Home / 402,726.27-555,748.02-221,436.93

Finding the Fourth Proportional to 402,726.27, 555,748.02 and 221,436.93

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Solution

The fourth proportional to 402,726.27, 555,748.02 and 221,436.93 is: 305,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,726.27 : 555,748.02 = 221,436.93 : x
  2. Step 2: Convert to fraction form
    402,726.27/555,748.02 = 221,436.93/x
  3. Step 3: Cross multiply
    402,726.27x = 555,748.02 × 221,436.93
  4. Step 4: Simplify right side
    402,726.27x = 123,063,134,295.19
  5. Step 5: Solve for x
    x = 123,063,134,295.19/402,726.27
  6. Step 6: Final answer
    x = 305,575.13

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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.