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Finding the Fourth Proportional to 284,449.20, 426,673.80 and 144,481.20

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Solution

The fourth proportional to 284,449.20, 426,673.80 and 144,481.20 is: 216,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,449.20 : 426,673.80 = 144,481.20 : x
  2. Step 2: Convert to fraction form
    284,449.20/426,673.80 = 144,481.20/x
  3. Step 3: Cross multiply
    284,449.20x = 426,673.80 × 144,481.20
  4. Step 4: Simplify right side
    284,449.20x = 61,646,342,632.56
  5. Step 5: Solve for x
    x = 61,646,342,632.56/284,449.20
  6. Step 6: Final answer
    x = 216,721.80

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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.