Home / 217,740.82-326,484.11-84,465.35

Finding the Fourth Proportional to 217,740.82, 326,484.11 and 84,465.35

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Solution

The fourth proportional to 217,740.82, 326,484.11 and 84,465.35 is: 126,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,740.82 : 326,484.11 = 84,465.35 : x
  2. Step 2: Convert to fraction form
    217,740.82/326,484.11 = 84,465.35/x
  3. Step 3: Cross multiply
    217,740.82x = 326,484.11 × 84,465.35
  4. Step 4: Simplify right side
    217,740.82x = 27,576,592,988.17
  5. Step 5: Solve for x
    x = 27,576,592,988.17/217,740.82
  6. Step 6: Final answer
    x = 126,648.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.