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Finding the Fourth Proportional to 268,586.72, 370,656.68 and 147,731.18

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Solution

The fourth proportional to 268,586.72, 370,656.68 and 147,731.18 is: 203,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,586.72 : 370,656.68 = 147,731.18 : x
  2. Step 2: Convert to fraction form
    268,586.72/370,656.68 = 147,731.18/x
  3. Step 3: Cross multiply
    268,586.72x = 370,656.68 × 147,731.18
  4. Step 4: Simplify right side
    268,586.72x = 54,757,547,365.82
  5. Step 5: Solve for x
    x = 54,757,547,365.82/268,586.72
  6. Step 6: Final answer
    x = 203,872.88

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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.