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Finding the Fourth Proportional to 283,990.70, 426,860.85 and 268,244.30

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Solution

The fourth proportional to 283,990.70, 426,860.85 and 268,244.30 is: 403,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,990.70 : 426,860.85 = 268,244.30 : x
  2. Step 2: Convert to fraction form
    283,990.70/426,860.85 = 268,244.30/x
  3. Step 3: Cross multiply
    283,990.70x = 426,860.85 × 268,244.30
  4. Step 4: Simplify right side
    283,990.70x = 114,502,989,905.66
  5. Step 5: Solve for x
    x = 114,502,989,905.66/283,990.70
  6. Step 6: Final answer
    x = 403,192.75

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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.