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Finding the Fourth Proportional to 385,898.76, 532,725.39 and 271,275.66

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Solution

The fourth proportional to 385,898.76, 532,725.39 and 271,275.66 is: 374,490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,898.76 : 532,725.39 = 271,275.66 : x
  2. Step 2: Convert to fraction form
    385,898.76/532,725.39 = 271,275.66/x
  3. Step 3: Cross multiply
    385,898.76x = 532,725.39 × 271,275.66
  4. Step 4: Simplify right side
    385,898.76x = 144,515,431,771.01
  5. Step 5: Solve for x
    x = 144,515,431,771.01/385,898.76
  6. Step 6: Final answer
    x = 374,490.53

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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.