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Finding the Fourth Proportional to 492,090.90, 738,136.35 and 159,666.90

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Solution

The fourth proportional to 492,090.90, 738,136.35 and 159,666.90 is: 239,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,090.90 : 738,136.35 = 159,666.90 : x
  2. Step 2: Convert to fraction form
    492,090.90/738,136.35 = 159,666.90/x
  3. Step 3: Cross multiply
    492,090.90x = 738,136.35 × 159,666.90
  4. Step 4: Simplify right side
    492,090.90x = 117,855,942,781.82
  5. Step 5: Solve for x
    x = 117,855,942,781.82/492,090.90
  6. Step 6: Final answer
    x = 239,500.35

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Similar ratio
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1.5x scale

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.