Home / 367,381.20-551,077.64-139,680.29

Finding the Fourth Proportional to 367,381.20, 551,077.64 and 139,680.29

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Solution

The fourth proportional to 367,381.20, 551,077.64 and 139,680.29 is: 209,522.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,381.20 : 551,077.64 = 139,680.29 : x
  2. Step 2: Convert to fraction form
    367,381.20/551,077.64 = 139,680.29/x
  3. Step 3: Cross multiply
    367,381.20x = 551,077.64 × 139,680.29
  4. Step 4: Simplify right side
    367,381.20x = 76,974,684,567.72
  5. Step 5: Solve for x
    x = 76,974,684,567.72/367,381.20
  6. Step 6: Final answer
    x = 209,522.66

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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.