Home / 283,719.81-391,528.53-154,659.72

Finding the Fourth Proportional to 283,719.81, 391,528.53 and 154,659.72

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Solution

The fourth proportional to 283,719.81, 391,528.53 and 154,659.72 is: 213,427.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,719.81 : 391,528.53 = 154,659.72 : x
  2. Step 2: Convert to fraction form
    283,719.81/391,528.53 = 154,659.72/x
  3. Step 3: Cross multiply
    283,719.81x = 391,528.53 × 154,659.72
  4. Step 4: Simplify right side
    283,719.81x = 60,553,692,821.81
  5. Step 5: Solve for x
    x = 60,553,692,821.81/283,719.81
  6. Step 6: Final answer
    x = 213,427.79

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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.