Home / 283,871.72-391,738.04-154,811.18

Finding the Fourth Proportional to 283,871.72, 391,738.04 and 154,811.18

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Solution

The fourth proportional to 283,871.72, 391,738.04 and 154,811.18 is: 213,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,871.72 : 391,738.04 = 154,811.18 : x
  2. Step 2: Convert to fraction form
    283,871.72/391,738.04 = 154,811.18/x
  3. Step 3: Cross multiply
    283,871.72x = 391,738.04 × 154,811.18
  4. Step 4: Simplify right side
    283,871.72x = 60,645,429,009.12
  5. Step 5: Solve for x
    x = 60,645,429,009.12/283,871.72
  6. Step 6: Final answer
    x = 213,636.74

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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.