Home / 212,359.20-318,593.93-79,240.46

Finding the Fourth Proportional to 212,359.20, 318,593.93 and 79,240.46

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Solution

The fourth proportional to 212,359.20, 318,593.93 and 79,240.46 is: 118,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,359.20 : 318,593.93 = 79,240.46 : x
  2. Step 2: Convert to fraction form
    212,359.20/318,593.93 = 79,240.46/x
  3. Step 3: Cross multiply
    212,359.20x = 318,593.93 × 79,240.46
  4. Step 4: Simplify right side
    212,359.20x = 25,245,527,577.24
  5. Step 5: Solve for x
    x = 25,245,527,577.24/212,359.20
  6. Step 6: Final answer
    x = 118,881.25

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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.