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Finding the Fourth Proportional to 308,319.66, 462,592.89 and 220,266.18

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Solution

The fourth proportional to 308,319.66, 462,592.89 and 220,266.18 is: 330,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,319.66 : 462,592.89 = 220,266.18 : x
  2. Step 2: Convert to fraction form
    308,319.66/462,592.89 = 220,266.18/x
  3. Step 3: Cross multiply
    308,319.66x = 462,592.89 × 220,266.18
  4. Step 4: Simplify right side
    308,319.66x = 101,893,568,775.46
  5. Step 5: Solve for x
    x = 101,893,568,775.46/308,319.66
  6. Step 6: Final answer
    x = 330,480.28

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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.