Home / 251,908.20-347,617.55-138,730.95

Finding the Fourth Proportional to 251,908.20, 347,617.55 and 138,730.95

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Solution

The fourth proportional to 251,908.20, 347,617.55 and 138,730.95 is: 191,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,908.20 : 347,617.55 = 138,730.95 : x
  2. Step 2: Convert to fraction form
    251,908.20/347,617.55 = 138,730.95/x
  3. Step 3: Cross multiply
    251,908.20x = 347,617.55 × 138,730.95
  4. Step 4: Simplify right side
    251,908.20x = 48,225,313,882.49
  5. Step 5: Solve for x
    x = 48,225,313,882.49/251,908.20
  6. Step 6: Final answer
    x = 191,440.03

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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.