Home / 485,109.60-727,647.99-148,136.64

Finding the Fourth Proportional to 485,109.60, 727,647.99 and 148,136.64

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Solution

The fourth proportional to 485,109.60, 727,647.99 and 148,136.64 is: 222,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,109.60 : 727,647.99 = 148,136.64 : x
  2. Step 2: Convert to fraction form
    485,109.60/727,647.99 = 148,136.64/x
  3. Step 3: Cross multiply
    485,109.60x = 727,647.99 × 148,136.64
  4. Step 4: Simplify right side
    485,109.60x = 107,791,328,341.35
  5. Step 5: Solve for x
    x = 107,791,328,341.35/485,109.60
  6. Step 6: Final answer
    x = 222,199.95

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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.