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Finding the Fourth Proportional to 308,550.45, 462,859.70 and 98,139.18

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Solution

The fourth proportional to 308,550.45, 462,859.70 and 98,139.18 is: 147,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,550.45 : 462,859.70 = 98,139.18 : x
  2. Step 2: Convert to fraction form
    308,550.45/462,859.70 = 98,139.18/x
  3. Step 3: Cross multiply
    308,550.45x = 462,859.70 × 98,139.18
  4. Step 4: Simplify right side
    308,550.45x = 45,424,670,922.35
  5. Step 5: Solve for x
    x = 45,424,670,922.35/308,550.45
  6. Step 6: Final answer
    x = 147,219.59

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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.