Home / 308,169.12-462,161.76-130,673.28

Finding the Fourth Proportional to 308,169.12, 462,161.76 and 130,673.28

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Solution

The fourth proportional to 308,169.12, 462,161.76 and 130,673.28 is: 195,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,169.12 : 462,161.76 = 130,673.28 : x
  2. Step 2: Convert to fraction form
    308,169.12/462,161.76 = 130,673.28/x
  3. Step 3: Cross multiply
    308,169.12x = 462,161.76 × 130,673.28
  4. Step 4: Simplify right side
    308,169.12x = 60,392,193,069.77
  5. Step 5: Solve for x
    x = 60,392,193,069.77/308,169.12
  6. Step 6: Final answer
    x = 195,970.94

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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.