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Finding the Fourth Proportional to 315,635.56, 473,141.68 and 125,981.66

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Solution

The fourth proportional to 315,635.56, 473,141.68 and 125,981.66 is: 188,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,635.56 : 473,141.68 = 125,981.66 : x
  2. Step 2: Convert to fraction form
    315,635.56/473,141.68 = 125,981.66/x
  3. Step 3: Cross multiply
    315,635.56x = 473,141.68 × 125,981.66
  4. Step 4: Simplify right side
    315,635.56x = 59,607,175,129.49
  5. Step 5: Solve for x
    x = 59,607,175,129.49/315,635.56
  6. Step 6: Final answer
    x = 188,848.10

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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.