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Finding the Fourth Proportional to 283,220.10, 424,830.15 and 171,245.70

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Solution

The fourth proportional to 283,220.10, 424,830.15 and 171,245.70 is: 256,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,220.10 : 424,830.15 = 171,245.70 : x
  2. Step 2: Convert to fraction form
    283,220.10/424,830.15 = 171,245.70/x
  3. Step 3: Cross multiply
    283,220.10x = 424,830.15 × 171,245.70
  4. Step 4: Simplify right side
    283,220.10x = 72,750,336,417.86
  5. Step 5: Solve for x
    x = 72,750,336,417.86/283,220.10
  6. Step 6: Final answer
    x = 256,868.55

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Similar ratio
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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.