Home / 453,748.96-680,721.84-138,197.60

Finding the Fourth Proportional to 453,748.96, 680,721.84 and 138,197.60

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Solution

The fourth proportional to 453,748.96, 680,721.84 and 138,197.60 is: 207,326.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,748.96 : 680,721.84 = 138,197.60 : x
  2. Step 2: Convert to fraction form
    453,748.96/680,721.84 = 138,197.60/x
  3. Step 3: Cross multiply
    453,748.96x = 680,721.84 × 138,197.60
  4. Step 4: Simplify right side
    453,748.96x = 94,074,124,555.58
  5. Step 5: Solve for x
    x = 94,074,124,555.58/453,748.96
  6. Step 6: Final answer
    x = 207,326.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.