Home / 283,634.73-391,424.13-156,318.53

Finding the Fourth Proportional to 283,634.73, 391,424.13 and 156,318.53

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Solution

The fourth proportional to 283,634.73, 391,424.13 and 156,318.53 is: 215,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,634.73 : 391,424.13 = 156,318.53 : x
  2. Step 2: Convert to fraction form
    283,634.73/391,424.13 = 156,318.53/x
  3. Step 3: Cross multiply
    283,634.73x = 391,424.13 × 156,318.53
  4. Step 4: Simplify right side
    283,634.73x = 61,186,842,651.01
  5. Step 5: Solve for x
    x = 61,186,842,651.01/283,634.73
  6. Step 6: Final answer
    x = 215,724.09

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1.5x scale

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.