Home / 453,985.41-680,976.30-138,441.41

Finding the Fourth Proportional to 453,985.41, 680,976.30 and 138,441.41

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Solution

The fourth proportional to 453,985.41, 680,976.30 and 138,441.41 is: 207,661.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,985.41 : 680,976.30 = 138,441.41 : x
  2. Step 2: Convert to fraction form
    453,985.41/680,976.30 = 138,441.41/x
  3. Step 3: Cross multiply
    453,985.41x = 680,976.30 × 138,441.41
  4. Step 4: Simplify right side
    453,985.41x = 94,275,319,148.58
  5. Step 5: Solve for x
    x = 94,275,319,148.58/453,985.41
  6. Step 6: Final answer
    x = 207,661.56

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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.