Home / 283,417.18-391,107.72-154,352.74

Finding the Fourth Proportional to 283,417.18, 391,107.72 and 154,352.74

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Solution

The fourth proportional to 283,417.18, 391,107.72 and 154,352.74 is: 213,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,417.18 : 391,107.72 = 154,352.74 : x
  2. Step 2: Convert to fraction form
    283,417.18/391,107.72 = 154,352.74/x
  3. Step 3: Cross multiply
    283,417.18x = 391,107.72 × 154,352.74
  4. Step 4: Simplify right side
    283,417.18x = 60,368,548,217.15
  5. Step 5: Solve for x
    x = 60,368,548,217.15/283,417.18
  6. Step 6: Final answer
    x = 213,002.43

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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.