Home / 665,424.40-998,136.60-192,125.20

Finding the Fourth Proportional to 665,424.40, 998,136.60 and 192,125.20

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Solution

The fourth proportional to 665,424.40, 998,136.60 and 192,125.20 is: 288,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,424.40 : 998,136.60 = 192,125.20 : x
  2. Step 2: Convert to fraction form
    665,424.40/998,136.60 = 192,125.20/x
  3. Step 3: Cross multiply
    665,424.40x = 998,136.60 × 192,125.20
  4. Step 4: Simplify right side
    665,424.40x = 191,767,193,902.32
  5. Step 5: Solve for x
    x = 191,767,193,902.32/665,424.40
  6. Step 6: Final answer
    x = 288,187.80

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Similar ratio
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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.