Home / 256,253.31-384,381.35-168,065.28

Finding the Fourth Proportional to 256,253.31, 384,381.35 and 168,065.28

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Solution

The fourth proportional to 256,253.31, 384,381.35 and 168,065.28 is: 252,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,253.31 : 384,381.35 = 168,065.28 : x
  2. Step 2: Convert to fraction form
    256,253.31/384,381.35 = 168,065.28/x
  3. Step 3: Cross multiply
    256,253.31x = 384,381.35 × 168,065.28
  4. Step 4: Simplify right side
    256,253.31x = 64,601,158,374.20
  5. Step 5: Solve for x
    x = 64,601,158,374.20/256,253.31
  6. Step 6: Final answer
    x = 252,098.83

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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.