Home / 283,670.02-391,466.45-156,345.61

Finding the Fourth Proportional to 283,670.02, 391,466.45 and 156,345.61

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Solution

The fourth proportional to 283,670.02, 391,466.45 and 156,345.61 is: 215,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,670.02 : 391,466.45 = 156,345.61 : x
  2. Step 2: Convert to fraction form
    283,670.02/391,466.45 = 156,345.61/x
  3. Step 3: Cross multiply
    283,670.02x = 391,466.45 × 156,345.61
  4. Step 4: Simplify right side
    283,670.02x = 61,204,060,919.78
  5. Step 5: Solve for x
    x = 61,204,060,919.78/283,670.02
  6. Step 6: Final answer
    x = 215,757.95

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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.