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Finding the Fourth Proportional to 244,705.70, 366,972.15 and 86,939.30

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Solution

The fourth proportional to 244,705.70, 366,972.15 and 86,939.30 is: 130,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,705.70 : 366,972.15 = 86,939.30 : x
  2. Step 2: Convert to fraction form
    244,705.70/366,972.15 = 86,939.30/x
  3. Step 3: Cross multiply
    244,705.70x = 366,972.15 × 86,939.30
  4. Step 4: Simplify right side
    244,705.70x = 31,904,301,840.50
  5. Step 5: Solve for x
    x = 31,904,301,840.50/244,705.70
  6. Step 6: Final answer
    x = 130,378.25

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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.