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Finding the Fourth Proportional to 491,445.35, 737,167.40 and 154,515.42

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Solution

The fourth proportional to 491,445.35, 737,167.40 and 154,515.42 is: 231,772.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,445.35 : 737,167.40 = 154,515.42 : x
  2. Step 2: Convert to fraction form
    491,445.35/737,167.40 = 154,515.42/x
  3. Step 3: Cross multiply
    491,445.35x = 737,167.40 × 154,515.42
  4. Step 4: Simplify right side
    491,445.35x = 113,903,730,421.31
  5. Step 5: Solve for x
    x = 113,903,730,421.31/491,445.35
  6. Step 6: Final answer
    x = 231,772.93

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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.