Home / 251,680.52-347,318.91-138,503.27

Finding the Fourth Proportional to 251,680.52, 347,318.91 and 138,503.27

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Solution

The fourth proportional to 251,680.52, 347,318.91 and 138,503.27 is: 191,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,680.52 : 347,318.91 = 138,503.27 : x
  2. Step 2: Convert to fraction form
    251,680.52/347,318.91 = 138,503.27/x
  3. Step 3: Cross multiply
    251,680.52x = 347,318.91 × 138,503.27
  4. Step 4: Simplify right side
    251,680.52x = 48,104,803,031.24
  5. Step 5: Solve for x
    x = 48,104,803,031.24/251,680.52
  6. Step 6: Final answer
    x = 191,134.40

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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.