Home / 392,256,172.80-588,384,259.20-256,207,276.80

Finding the Fourth Proportional to 392,256,172.80, 588,384,259.20 and 256,207,276.80

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Solution

The fourth proportional to 392,256,172.80, 588,384,259.20 and 256,207,276.80 is: 384,310,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,256,172.80 : 588,384,259.20 = 256,207,276.80 : x
  2. Step 2: Convert to fraction form
    392,256,172.80/588,384,259.20 = 256,207,276.80/x
  3. Step 3: Cross multiply
    392,256,172.80x = 588,384,259.20 × 256,207,276.80
  4. Step 4: Simplify right side
    392,256,172.80x = 150,748,328,761,617,376
  5. Step 5: Solve for x
    x = 150,748,328,761,617,376/392,256,172.80
  6. Step 6: Final answer
    x = 384,310,915.20

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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.