Home / 284,929.40-393,079.02-171,687.80

Finding the Fourth Proportional to 284,929.40, 393,079.02 and 171,687.80

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Solution

The fourth proportional to 284,929.40, 393,079.02 and 171,687.80 is: 236,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,929.40 : 393,079.02 = 171,687.80 : x
  2. Step 2: Convert to fraction form
    284,929.40/393,079.02 = 171,687.80/x
  3. Step 3: Cross multiply
    284,929.40x = 393,079.02 × 171,687.80
  4. Step 4: Simplify right side
    284,929.40x = 67,486,872,169.96
  5. Step 5: Solve for x
    x = 67,486,872,169.96/284,929.40
  6. Step 6: Final answer
    x = 236,854.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.