Home / 283,616.09-391,385.18-154,555.72

Finding the Fourth Proportional to 283,616.09, 391,385.18 and 154,555.72

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Solution

The fourth proportional to 283,616.09, 391,385.18 and 154,555.72 is: 213,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,616.09 : 391,385.18 = 154,555.72 : x
  2. Step 2: Convert to fraction form
    283,616.09/391,385.18 = 154,555.72/x
  3. Step 3: Cross multiply
    283,616.09x = 391,385.18 × 154,555.72
  4. Step 4: Simplify right side
    283,616.09x = 60,490,817,700.16
  5. Step 5: Solve for x
    x = 60,490,817,700.16/283,616.09
  6. Step 6: Final answer
    x = 213,284.15

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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.