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Finding the Fourth Proportional to 343,091.28, 473,410.85 and 215,676.66

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Solution

The fourth proportional to 343,091.28, 473,410.85 and 215,676.66 is: 297,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,091.28 : 473,410.85 = 215,676.66 : x
  2. Step 2: Convert to fraction form
    343,091.28/473,410.85 = 215,676.66/x
  3. Step 3: Cross multiply
    343,091.28x = 473,410.85 × 215,676.66
  4. Step 4: Simplify right side
    343,091.28x = 102,103,672,658.48
  5. Step 5: Solve for x
    x = 102,103,672,658.48/343,091.28
  6. Step 6: Final answer
    x = 297,599.15

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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.