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Finding the Fourth Proportional to 284,583.20, 426,874.80 and 266,151.20

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Solution

The fourth proportional to 284,583.20, 426,874.80 and 266,151.20 is: 399,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,583.20 : 426,874.80 = 266,151.20 : x
  2. Step 2: Convert to fraction form
    284,583.20/426,874.80 = 266,151.20/x
  3. Step 3: Cross multiply
    284,583.20x = 426,874.80 × 266,151.20
  4. Step 4: Simplify right side
    284,583.20x = 113,613,240,269.76
  5. Step 5: Solve for x
    x = 113,613,240,269.76/284,583.20
  6. Step 6: Final answer
    x = 399,226.80

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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.