Home / 287,936.40-397,349.52-158,876.04

Finding the Fourth Proportional to 287,936.40, 397,349.52 and 158,876.04

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Solution

The fourth proportional to 287,936.40, 397,349.52 and 158,876.04 is: 219,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,936.40 : 397,349.52 = 158,876.04 : x
  2. Step 2: Convert to fraction form
    287,936.40/397,349.52 = 158,876.04/x
  3. Step 3: Cross multiply
    287,936.40x = 397,349.52 × 158,876.04
  4. Step 4: Simplify right side
    287,936.40x = 63,129,318,233.50
  5. Step 5: Solve for x
    x = 63,129,318,233.50/287,936.40
  6. Step 6: Final answer
    x = 219,247.44

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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.