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Finding the Fourth Proportional to 247,676.40, 341,016.48 and 218,574.72

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Solution

The fourth proportional to 247,676.40, 341,016.48 and 218,574.72 is: 300,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,676.40 : 341,016.48 = 218,574.72 : x
  2. Step 2: Convert to fraction form
    247,676.40/341,016.48 = 218,574.72/x
  3. Step 3: Cross multiply
    247,676.40x = 341,016.48 × 218,574.72
  4. Step 4: Simplify right side
    247,676.40x = 74,537,581,631.39
  5. Step 5: Solve for x
    x = 74,537,581,631.39/247,676.40
  6. Step 6: Final answer
    x = 300,947.45

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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.