Home / 438,185.20-657,299.40-228,233.20

Finding the Fourth Proportional to 438,185.20, 657,299.40 and 228,233.20

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Solution

The fourth proportional to 438,185.20, 657,299.40 and 228,233.20 is: 342,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,185.20 : 657,299.40 = 228,233.20 : x
  2. Step 2: Convert to fraction form
    438,185.20/657,299.40 = 228,233.20/x
  3. Step 3: Cross multiply
    438,185.20x = 657,299.40 × 228,233.20
  4. Step 4: Simplify right side
    438,185.20x = 150,017,545,420.08
  5. Step 5: Solve for x
    x = 150,017,545,420.08/438,185.20
  6. Step 6: Final answer
    x = 342,361.05

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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.