Home / 251,925.91-347,641.80-138,748.66

Finding the Fourth Proportional to 251,925.91, 347,641.80 and 138,748.66

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Solution

The fourth proportional to 251,925.91, 347,641.80 and 138,748.66 is: 191,464.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,925.91 : 347,641.80 = 138,748.66 : x
  2. Step 2: Convert to fraction form
    251,925.91/347,641.80 = 138,748.66/x
  3. Step 3: Cross multiply
    251,925.91x = 347,641.80 × 138,748.66
  4. Step 4: Simplify right side
    251,925.91x = 48,234,833,909.99
  5. Step 5: Solve for x
    x = 48,234,833,909.99/251,925.91
  6. Step 6: Final answer
    x = 191,464.36

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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.