Home / 308,121.12-462,089.88-130,625.28

Finding the Fourth Proportional to 308,121.12, 462,089.88 and 130,625.28

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Solution

The fourth proportional to 308,121.12, 462,089.88 and 130,625.28 is: 195,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,121.12 : 462,089.88 = 130,625.28 : x
  2. Step 2: Convert to fraction form
    308,121.12/462,089.88 = 130,625.28/x
  3. Step 3: Cross multiply
    308,121.12x = 462,089.88 × 130,625.28
  4. Step 4: Simplify right side
    308,121.12x = 60,360,619,960.17
  5. Step 5: Solve for x
    x = 60,360,619,960.17/308,121.12
  6. Step 6: Final answer
    x = 195,899.00

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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.