Home / 251,827.20-347,511.02-138,642.66

Finding the Fourth Proportional to 251,827.20, 347,511.02 and 138,642.66

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Solution

The fourth proportional to 251,827.20, 347,511.02 and 138,642.66 is: 191,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,827.20 : 347,511.02 = 138,642.66 : x
  2. Step 2: Convert to fraction form
    251,827.20/347,511.02 = 138,642.66/x
  3. Step 3: Cross multiply
    251,827.20x = 347,511.02 × 138,642.66
  4. Step 4: Simplify right side
    251,827.20x = 48,179,852,192.11
  5. Step 5: Solve for x
    x = 48,179,852,192.11/251,827.20
  6. Step 6: Final answer
    x = 191,321.08

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1.5x scale

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.