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Finding the Fourth Proportional to 486,010.80, 729,380.70 and 249,231.60

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Solution

The fourth proportional to 486,010.80, 729,380.70 and 249,231.60 is: 374,034.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,010.80 : 729,380.70 = 249,231.60 : x
  2. Step 2: Convert to fraction form
    486,010.80/729,380.70 = 249,231.60/x
  3. Step 3: Cross multiply
    486,010.80x = 729,380.70 × 249,231.60
  4. Step 4: Simplify right side
    486,010.80x = 181,784,718,870.12
  5. Step 5: Solve for x
    x = 181,784,718,870.12/486,010.80
  6. Step 6: Final answer
    x = 374,034.32

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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.