Home / 218,731.40-328,056.60-60,927.20

Finding the Fourth Proportional to 218,731.40, 328,056.60 and 60,927.20

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Solution

The fourth proportional to 218,731.40, 328,056.60 and 60,927.20 is: 91,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,731.40 : 328,056.60 = 60,927.20 : x
  2. Step 2: Convert to fraction form
    218,731.40/328,056.60 = 60,927.20/x
  3. Step 3: Cross multiply
    218,731.40x = 328,056.60 × 60,927.20
  4. Step 4: Simplify right side
    218,731.40x = 19,987,570,079.52
  5. Step 5: Solve for x
    x = 19,987,570,079.52/218,731.40
  6. Step 6: Final answer
    x = 91,379.52

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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.