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Finding the Fourth Proportional to 268,023.68, 369,879.76 and 147,172.80

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Solution

The fourth proportional to 268,023.68, 369,879.76 and 147,172.80 is: 203,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,023.68 : 369,879.76 = 147,172.80 : x
  2. Step 2: Convert to fraction form
    268,023.68/369,879.76 = 147,172.80/x
  3. Step 3: Cross multiply
    268,023.68x = 369,879.76 × 147,172.80
  4. Step 4: Simplify right side
    268,023.68x = 54,436,239,942.53
  5. Step 5: Solve for x
    x = 54,436,239,942.53/268,023.68
  6. Step 6: Final answer
    x = 203,102.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.