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Finding the Fourth Proportional to 201,001.87, 301,498.97 and 81,056.29

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Solution

The fourth proportional to 201,001.87, 301,498.97 and 81,056.29 is: 121,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,001.87 : 301,498.97 = 81,056.29 : x
  2. Step 2: Convert to fraction form
    201,001.87/301,498.97 = 81,056.29/x
  3. Step 3: Cross multiply
    201,001.87x = 301,498.97 × 81,056.29
  4. Step 4: Simplify right side
    201,001.87x = 24,438,386,244.34
  5. Step 5: Solve for x
    x = 24,438,386,244.34/201,001.87
  6. Step 6: Final answer
    x = 121,582.88

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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.