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Finding the Fourth Proportional to 268,079.32, 369,953.32 and 147,231.48

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Solution

The fourth proportional to 268,079.32, 369,953.32 and 147,231.48 is: 203,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,079.32 : 369,953.32 = 147,231.48 : x
  2. Step 2: Convert to fraction form
    268,079.32/369,953.32 = 147,231.48/x
  3. Step 3: Cross multiply
    268,079.32x = 369,953.32 × 147,231.48
  4. Step 4: Simplify right side
    268,079.32x = 54,468,774,834.51
  5. Step 5: Solve for x
    x = 54,468,774,834.51/268,079.32
  6. Step 6: Final answer
    x = 203,181.56

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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.