Home / 251,680.59-347,319.27-138,503.34

Finding the Fourth Proportional to 251,680.59, 347,319.27 and 138,503.34

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Solution

The fourth proportional to 251,680.59, 347,319.27 and 138,503.34 is: 191,134.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,680.59 : 347,319.27 = 138,503.34 : x
  2. Step 2: Convert to fraction form
    251,680.59/347,319.27 = 138,503.34/x
  3. Step 3: Cross multiply
    251,680.59x = 347,319.27 × 138,503.34
  4. Step 4: Simplify right side
    251,680.59x = 48,104,878,248.85
  5. Step 5: Solve for x
    x = 48,104,878,248.85/251,680.59
  6. Step 6: Final answer
    x = 191,134.64

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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.