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Finding the Fourth Proportional to 475,386.40, 655,926.80 and 271,372.32

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Solution

The fourth proportional to 475,386.40, 655,926.80 and 271,372.32 is: 374,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,386.40 : 655,926.80 = 271,372.32 : x
  2. Step 2: Convert to fraction form
    475,386.40/655,926.80 = 271,372.32/x
  3. Step 3: Cross multiply
    475,386.40x = 655,926.80 × 271,372.32
  4. Step 4: Simplify right side
    475,386.40x = 178,000,377,466.18
  5. Step 5: Solve for x
    x = 178,000,377,466.18/475,386.40
  6. Step 6: Final answer
    x = 374,433.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.