Home / 283,636.23-391,426.20-156,320.03

Finding the Fourth Proportional to 283,636.23, 391,426.20 and 156,320.03

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Solution

The fourth proportional to 283,636.23, 391,426.20 and 156,320.03 is: 215,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,636.23 : 391,426.20 = 156,320.03 : x
  2. Step 2: Convert to fraction form
    283,636.23/391,426.20 = 156,320.03/x
  3. Step 3: Cross multiply
    283,636.23x = 391,426.20 × 156,320.03
  4. Step 4: Simplify right side
    283,636.23x = 61,187,755,326.79
  5. Step 5: Solve for x
    x = 61,187,755,326.79/283,636.23
  6. Step 6: Final answer
    x = 215,726.16

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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.