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Finding the Fourth Proportional to 289,921.59, 400,001.00 and 167,397.95

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Solution

The fourth proportional to 289,921.59, 400,001.00 and 167,397.95 is: 230,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,921.59 : 400,001.00 = 167,397.95 : x
  2. Step 2: Convert to fraction form
    289,921.59/400,001.00 = 167,397.95/x
  3. Step 3: Cross multiply
    289,921.59x = 400,001.00 × 167,397.95
  4. Step 4: Simplify right side
    289,921.59x = 66,959,344,560.96
  5. Step 5: Solve for x
    x = 66,959,344,560.96/289,921.59
  6. Step 6: Final answer
    x = 230,956.74

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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.