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Finding the Fourth Proportional to 217,200.60, 325,800.90 and 146,341.80

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Solution

The fourth proportional to 217,200.60, 325,800.90 and 146,341.80 is: 219,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,200.60 : 325,800.90 = 146,341.80 : x
  2. Step 2: Convert to fraction form
    217,200.60/325,800.90 = 146,341.80/x
  3. Step 3: Cross multiply
    217,200.60x = 325,800.90 × 146,341.80
  4. Step 4: Simplify right side
    217,200.60x = 47,678,290,147.62
  5. Step 5: Solve for x
    x = 47,678,290,147.62/217,200.60
  6. Step 6: Final answer
    x = 219,512.70

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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.