Home / 283,416.18-391,106.34-154,351.74

Finding the Fourth Proportional to 283,416.18, 391,106.34 and 154,351.74

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Solution

The fourth proportional to 283,416.18, 391,106.34 and 154,351.74 is: 213,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,416.18 : 391,106.34 = 154,351.74 : x
  2. Step 2: Convert to fraction form
    283,416.18/391,106.34 = 154,351.74/x
  3. Step 3: Cross multiply
    283,416.18x = 391,106.34 × 154,351.74
  4. Step 4: Simplify right side
    283,416.18x = 60,367,944,104.03
  5. Step 5: Solve for x
    x = 60,367,944,104.03/283,416.18
  6. Step 6: Final answer
    x = 213,001.05

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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.