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Finding the Fourth Proportional to 534,245.80, 801,665.70 and 218,680.60

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Solution

The fourth proportional to 534,245.80, 801,665.70 and 218,680.60 is: 328,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,245.80 : 801,665.70 = 218,680.60 : x
  2. Step 2: Convert to fraction form
    534,245.80/801,665.70 = 218,680.60/x
  3. Step 3: Cross multiply
    534,245.80x = 801,665.70 × 218,680.60
  4. Step 4: Simplify right side
    534,245.80x = 175,308,736,275.42
  5. Step 5: Solve for x
    x = 175,308,736,275.42/534,245.80
  6. Step 6: Final answer
    x = 328,142.47

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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.