Home / 251,498.16-347,060.52-138,320.91

Finding the Fourth Proportional to 251,498.16, 347,060.52 and 138,320.91

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Solution

The fourth proportional to 251,498.16, 347,060.52 and 138,320.91 is: 190,879.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,498.16 : 347,060.52 = 138,320.91 : x
  2. Step 2: Convert to fraction form
    251,498.16/347,060.52 = 138,320.91/x
  3. Step 3: Cross multiply
    251,498.16x = 347,060.52 × 138,320.91
  4. Step 4: Simplify right side
    251,498.16x = 48,005,726,951.47
  5. Step 5: Solve for x
    x = 48,005,726,951.47/251,498.16
  6. Step 6: Final answer
    x = 190,879.04

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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.