Home / 318,401.24-439,283.32-197,499.02

Finding the Fourth Proportional to 318,401.24, 439,283.32 and 197,499.02

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Solution

The fourth proportional to 318,401.24, 439,283.32 and 197,499.02 is: 272,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,401.24 : 439,283.32 = 197,499.02 : x
  2. Step 2: Convert to fraction form
    318,401.24/439,283.32 = 197,499.02/x
  3. Step 3: Cross multiply
    318,401.24x = 439,283.32 × 197,499.02
  4. Step 4: Simplify right side
    318,401.24x = 86,758,022,512.18
  5. Step 5: Solve for x
    x = 86,758,022,512.18/318,401.24
  6. Step 6: Final answer
    x = 272,480.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.