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Finding the Fourth Proportional to 272,090.80, 408,136.20 and 177,612.40

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Solution

The fourth proportional to 272,090.80, 408,136.20 and 177,612.40 is: 266,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,090.80 : 408,136.20 = 177,612.40 : x
  2. Step 2: Convert to fraction form
    272,090.80/408,136.20 = 177,612.40/x
  3. Step 3: Cross multiply
    272,090.80x = 408,136.20 × 177,612.40
  4. Step 4: Simplify right side
    272,090.80x = 72,490,050,008.88
  5. Step 5: Solve for x
    x = 72,490,050,008.88/272,090.80
  6. Step 6: Final answer
    x = 266,418.60

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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.