Home / 454,360.20-681,572.70-138,816.60

Finding the Fourth Proportional to 454,360.20, 681,572.70 and 138,816.60

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Solution

The fourth proportional to 454,360.20, 681,572.70 and 138,816.60 is: 208,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,360.20 : 681,572.70 = 138,816.60 : x
  2. Step 2: Convert to fraction form
    454,360.20/681,572.70 = 138,816.60/x
  3. Step 3: Cross multiply
    454,360.20x = 681,572.70 × 138,816.60
  4. Step 4: Simplify right side
    454,360.20x = 94,613,604,866.82
  5. Step 5: Solve for x
    x = 94,613,604,866.82/454,360.20
  6. Step 6: Final answer
    x = 208,234.80

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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.