Home / 261,916.42-392,877.10-143,523.12

Finding the Fourth Proportional to 261,916.42, 392,877.10 and 143,523.12

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Solution

The fourth proportional to 261,916.42, 392,877.10 and 143,523.12 is: 215,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,916.42 : 392,877.10 = 143,523.12 : x
  2. Step 2: Convert to fraction form
    261,916.42/392,877.10 = 143,523.12/x
  3. Step 3: Cross multiply
    261,916.42x = 392,877.10 × 143,523.12
  4. Step 4: Simplify right side
    261,916.42x = 56,386,947,168.55
  5. Step 5: Solve for x
    x = 56,386,947,168.55/261,916.42
  6. Step 6: Final answer
    x = 215,286.03

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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.