Home / 251,949.17-347,689.85-138,771.92

Finding the Fourth Proportional to 251,949.17, 347,689.85 and 138,771.92

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Solution

The fourth proportional to 251,949.17, 347,689.85 and 138,771.92 is: 191,505.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,949.17 : 347,689.85 = 138,771.92 : x
  2. Step 2: Convert to fraction form
    251,949.17/347,689.85 = 138,771.92/x
  3. Step 3: Cross multiply
    251,949.17x = 347,689.85 × 138,771.92
  4. Step 4: Simplify right side
    251,949.17x = 48,249,588,224.38
  5. Step 5: Solve for x
    x = 48,249,588,224.38/251,949.17
  6. Step 6: Final answer
    x = 191,505.25

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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.