Home / 283,618.23-391,391.28-156,293.93

Finding the Fourth Proportional to 283,618.23, 391,391.28 and 156,293.93

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Solution

The fourth proportional to 283,618.23, 391,391.28 and 156,293.93 is: 215,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,618.23 : 391,391.28 = 156,293.93 : x
  2. Step 2: Convert to fraction form
    283,618.23/391,391.28 = 156,293.93/x
  3. Step 3: Cross multiply
    283,618.23x = 391,391.28 × 156,293.93
  4. Step 4: Simplify right side
    283,618.23x = 61,172,079,361.97
  5. Step 5: Solve for x
    x = 61,172,079,361.97/283,618.23
  6. Step 6: Final answer
    x = 215,684.58

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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.