Home / 283,613.21-391,381.16-154,552.80

Finding the Fourth Proportional to 283,613.21, 391,381.16 and 154,552.80

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Solution

The fourth proportional to 283,613.21, 391,381.16 and 154,552.80 is: 213,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,613.21 : 391,381.16 = 154,552.80 : x
  2. Step 2: Convert to fraction form
    283,613.21/391,381.16 = 154,552.80/x
  3. Step 3: Cross multiply
    283,613.21x = 391,381.16 × 154,552.80
  4. Step 4: Simplify right side
    283,613.21x = 60,489,053,372.48
  5. Step 5: Solve for x
    x = 60,489,053,372.48/283,613.21
  6. Step 6: Final answer
    x = 213,280.10

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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.