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Finding the Fourth Proportional to 394,095.60, 591,152.40 and 141,392.88

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Solution

The fourth proportional to 394,095.60, 591,152.40 and 141,392.88 is: 212,092.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,095.60 : 591,152.40 = 141,392.88 : x
  2. Step 2: Convert to fraction form
    394,095.60/591,152.40 = 141,392.88/x
  3. Step 3: Cross multiply
    394,095.60x = 591,152.40 × 141,392.88
  4. Step 4: Simplify right side
    394,095.60x = 83,584,740,354.91
  5. Step 5: Solve for x
    x = 83,584,740,354.91/394,095.60
  6. Step 6: Final answer
    x = 212,092.55

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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.