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Finding the Fourth Proportional to 577,498.60, 866,312.70 and 178,136.20

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Solution

The fourth proportional to 577,498.60, 866,312.70 and 178,136.20 is: 267,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,498.60 : 866,312.70 = 178,136.20 : x
  2. Step 2: Convert to fraction form
    577,498.60/866,312.70 = 178,136.20/x
  3. Step 3: Cross multiply
    577,498.60x = 866,312.70 × 178,136.20
  4. Step 4: Simplify right side
    577,498.60x = 154,321,652,389.74
  5. Step 5: Solve for x
    x = 154,321,652,389.74/577,498.60
  6. Step 6: Final answer
    x = 267,224.29

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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.