Home / 218,723.10-328,084.63-52,511.10

Finding the Fourth Proportional to 218,723.10, 328,084.63 and 52,511.10

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Solution

The fourth proportional to 218,723.10, 328,084.63 and 52,511.10 is: 78,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,723.10 : 328,084.63 = 52,511.10 : x
  2. Step 2: Convert to fraction form
    218,723.10/328,084.63 = 52,511.10/x
  3. Step 3: Cross multiply
    218,723.10x = 328,084.63 × 52,511.10
  4. Step 4: Simplify right side
    218,723.10x = 17,228,084,683.12
  5. Step 5: Solve for x
    x = 17,228,084,683.12/218,723.10
  6. Step 6: Final answer
    x = 78,766.64

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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.