Home / 283,976.66-391,888.91-154,917.89

Finding the Fourth Proportional to 283,976.66, 391,888.91 and 154,917.89

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Solution

The fourth proportional to 283,976.66, 391,888.91 and 154,917.89 is: 213,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,976.66 : 391,888.91 = 154,917.89 : x
  2. Step 2: Convert to fraction form
    283,976.66/391,888.91 = 154,917.89/x
  3. Step 3: Cross multiply
    283,976.66x = 391,888.91 × 154,917.89
  4. Step 4: Simplify right side
    283,976.66x = 60,710,603,615.51
  5. Step 5: Solve for x
    x = 60,710,603,615.51/283,976.66
  6. Step 6: Final answer
    x = 213,787.30

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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.