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Finding the Fourth Proportional to 234,138.40, 351,208.51 and 56,645.12

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Solution

The fourth proportional to 234,138.40, 351,208.51 and 56,645.12 is: 84,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,138.40 : 351,208.51 = 56,645.12 : x
  2. Step 2: Convert to fraction form
    234,138.40/351,208.51 = 56,645.12/x
  3. Step 3: Cross multiply
    234,138.40x = 351,208.51 × 56,645.12
  4. Step 4: Simplify right side
    234,138.40x = 19,894,248,930.38
  5. Step 5: Solve for x
    x = 19,894,248,930.38/234,138.40
  6. Step 6: Final answer
    x = 84,967.90

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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.