Home / 283,619.23-391,392.66-156,294.93

Finding the Fourth Proportional to 283,619.23, 391,392.66 and 156,294.93

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Solution

The fourth proportional to 283,619.23, 391,392.66 and 156,294.93 is: 215,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,619.23 : 391,392.66 = 156,294.93 : x
  2. Step 2: Convert to fraction form
    283,619.23/391,392.66 = 156,294.93/x
  3. Step 3: Cross multiply
    283,619.23x = 391,392.66 × 156,294.93
  4. Step 4: Simplify right side
    283,619.23x = 61,172,688,397.21
  5. Step 5: Solve for x
    x = 61,172,688,397.21/283,619.23
  6. Step 6: Final answer
    x = 215,685.97

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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.