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Finding the Fourth Proportional to 402,059.93, 554,817.47 and 220,770.59

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Solution

The fourth proportional to 402,059.93, 554,817.47 and 220,770.59 is: 304,649.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,059.93 : 554,817.47 = 220,770.59 : x
  2. Step 2: Convert to fraction form
    402,059.93/554,817.47 = 220,770.59/x
  3. Step 3: Cross multiply
    402,059.93x = 554,817.47 × 220,770.59
  4. Step 4: Simplify right side
    402,059.93x = 122,487,376,316.27
  5. Step 5: Solve for x
    x = 122,487,376,316.27/402,059.93
  6. Step 6: Final answer
    x = 304,649.55

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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.