Home / 218,982.70-328,583.40-124,285.60

Finding the Fourth Proportional to 218,982.70, 328,583.40 and 124,285.60

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Solution

The fourth proportional to 218,982.70, 328,583.40 and 124,285.60 is: 186,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,982.70 : 328,583.40 = 124,285.60 : x
  2. Step 2: Convert to fraction form
    218,982.70/328,583.40 = 124,285.60/x
  3. Step 3: Cross multiply
    218,982.70x = 328,583.40 × 124,285.60
  4. Step 4: Simplify right side
    218,982.70x = 40,838,185,019.04
  5. Step 5: Solve for x
    x = 40,838,185,019.04/218,982.70
  6. Step 6: Final answer
    x = 186,490.46

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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.