Home / 392,127.72-587,244.12-223,136.16

Finding the Fourth Proportional to 392,127.72, 587,244.12 and 223,136.16

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Solution

The fourth proportional to 392,127.72, 587,244.12 and 223,136.16 is: 334,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,127.72 : 587,244.12 = 223,136.16 : x
  2. Step 2: Convert to fraction form
    392,127.72/587,244.12 = 223,136.16/x
  3. Step 3: Cross multiply
    392,127.72x = 587,244.12 × 223,136.16
  4. Step 4: Simplify right side
    392,127.72x = 131,035,397,919.38
  5. Step 5: Solve for x
    x = 131,035,397,919.38/392,127.72
  6. Step 6: Final answer
    x = 334,165.10

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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.