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Finding the Fourth Proportional to 373,225.20, 559,837.80 and 279,913.20

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Solution

The fourth proportional to 373,225.20, 559,837.80 and 279,913.20 is: 419,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,225.20 : 559,837.80 = 279,913.20 : x
  2. Step 2: Convert to fraction form
    373,225.20/559,837.80 = 279,913.20/x
  3. Step 3: Cross multiply
    373,225.20x = 559,837.80 × 279,913.20
  4. Step 4: Simplify right side
    373,225.20x = 156,705,990,078.96
  5. Step 5: Solve for x
    x = 156,705,990,078.96/373,225.20
  6. Step 6: Final answer
    x = 419,869.80

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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.