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Finding the Fourth Proportional to 299,875.79, 449,747.27 and 86,597.27

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Solution

The fourth proportional to 299,875.79, 449,747.27 and 86,597.27 is: 129,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,875.79 : 449,747.27 = 86,597.27 : x
  2. Step 2: Convert to fraction form
    299,875.79/449,747.27 = 86,597.27/x
  3. Step 3: Cross multiply
    299,875.79x = 449,747.27 × 86,597.27
  4. Step 4: Simplify right side
    299,875.79x = 38,946,883,523.22
  5. Step 5: Solve for x
    x = 38,946,883,523.22/299,875.79
  6. Step 6: Final answer
    x = 129,876.72

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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.