Home / 453,904.03-680,965.40-138,341.53

Finding the Fourth Proportional to 453,904.03, 680,965.40 and 138,341.53

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Solution

The fourth proportional to 453,904.03, 680,965.40 and 138,341.53 is: 207,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,904.03 : 680,965.40 = 138,341.53 : x
  2. Step 2: Convert to fraction form
    453,904.03/680,965.40 = 138,341.53/x
  3. Step 3: Cross multiply
    453,904.03x = 680,965.40 × 138,341.53
  4. Step 4: Simplify right side
    453,904.03x = 94,205,795,313.06
  5. Step 5: Solve for x
    x = 94,205,795,313.06/453,904.03
  6. Step 6: Final answer
    x = 207,545.62

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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.