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Finding the Fourth Proportional to 415,019.70, 622,602.45 and 148,934.70

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Solution

The fourth proportional to 415,019.70, 622,602.45 and 148,934.70 is: 223,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,019.70 : 622,602.45 = 148,934.70 : x
  2. Step 2: Convert to fraction form
    415,019.70/622,602.45 = 148,934.70/x
  3. Step 3: Cross multiply
    415,019.70x = 622,602.45 × 148,934.70
  4. Step 4: Simplify right side
    415,019.70x = 92,727,109,110.02
  5. Step 5: Solve for x
    x = 92,727,109,110.02/415,019.70
  6. Step 6: Final answer
    x = 223,428.21

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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.