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Finding the Fourth Proportional to 217,802.96, 326,578.72 and 84,527.45

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Solution

The fourth proportional to 217,802.96, 326,578.72 and 84,527.45 is: 126,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,802.96 : 326,578.72 = 84,527.45 : x
  2. Step 2: Convert to fraction form
    217,802.96/326,578.72 = 84,527.45/x
  3. Step 3: Cross multiply
    217,802.96x = 326,578.72 × 84,527.45
  4. Step 4: Simplify right side
    217,802.96x = 27,604,866,425.86
  5. Step 5: Solve for x
    x = 27,604,866,425.86/217,802.96
  6. Step 6: Final answer
    x = 126,742.38

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1.5x scale

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.