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Finding the Fourth Proportional to 385,963.95, 532,315.67 and 271,621.44

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Solution

The fourth proportional to 385,963.95, 532,315.67 and 271,621.44 is: 374,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,963.95 : 532,315.67 = 271,621.44 : x
  2. Step 2: Convert to fraction form
    385,963.95/532,315.67 = 271,621.44/x
  3. Step 3: Cross multiply
    385,963.95x = 532,315.67 × 271,621.44
  4. Step 4: Simplify right side
    385,963.95x = 144,588,347,461.86
  5. Step 5: Solve for x
    x = 144,588,347,461.86/385,963.95
  6. Step 6: Final answer
    x = 374,616.20

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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.