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Finding the Fourth Proportional to 340,872.60, 511,308.90 and 88,152.60

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Solution

The fourth proportional to 340,872.60, 511,308.90 and 88,152.60 is: 132,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,872.60 : 511,308.90 = 88,152.60 : x
  2. Step 2: Convert to fraction form
    340,872.60/511,308.90 = 88,152.60/x
  3. Step 3: Cross multiply
    340,872.60x = 511,308.90 × 88,152.60
  4. Step 4: Simplify right side
    340,872.60x = 45,073,208,938.14
  5. Step 5: Solve for x
    x = 45,073,208,938.14/340,872.60
  6. Step 6: Final answer
    x = 132,228.90

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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.