Home / 283,705.32-391,508.56-154,645.18

Finding the Fourth Proportional to 283,705.32, 391,508.56 and 154,645.18

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Solution

The fourth proportional to 283,705.32, 391,508.56 and 154,645.18 is: 213,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,705.32 : 391,508.56 = 154,645.18 : x
  2. Step 2: Convert to fraction form
    283,705.32/391,508.56 = 154,645.18/x
  3. Step 3: Cross multiply
    283,705.32x = 391,508.56 × 154,645.18
  4. Step 4: Simplify right side
    283,705.32x = 60,544,911,732.74
  5. Step 5: Solve for x
    x = 60,544,911,732.74/283,705.32
  6. Step 6: Final answer
    x = 213,407.74

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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.