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Finding the Fourth Proportional to 543,374.60, 815,061.90 and 144,014.60

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Solution

The fourth proportional to 543,374.60, 815,061.90 and 144,014.60 is: 216,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,374.60 : 815,061.90 = 144,014.60 : x
  2. Step 2: Convert to fraction form
    543,374.60/815,061.90 = 144,014.60/x
  3. Step 3: Cross multiply
    543,374.60x = 815,061.90 × 144,014.60
  4. Step 4: Simplify right side
    543,374.60x = 117,380,813,503.74
  5. Step 5: Solve for x
    x = 117,380,813,503.74/543,374.60
  6. Step 6: Final answer
    x = 216,021.90

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Similar ratio
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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.