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Finding the Fourth Proportional to 284,777.20, 426,874.20 and 166,387.60

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Solution

The fourth proportional to 284,777.20, 426,874.20 and 166,387.60 is: 249,411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,777.20 : 426,874.20 = 166,387.60 : x
  2. Step 2: Convert to fraction form
    284,777.20/426,874.20 = 166,387.60/x
  3. Step 3: Cross multiply
    284,777.20x = 426,874.20 × 166,387.60
  4. Step 4: Simplify right side
    284,777.20x = 71,026,573,639.92
  5. Step 5: Solve for x
    x = 71,026,573,639.92/284,777.20
  6. Step 6: Final answer
    x = 249,411.03

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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.