Home / 438,175.20-657,003.60-228,223.20

Finding the Fourth Proportional to 438,175.20, 657,003.60 and 228,223.20

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Solution

The fourth proportional to 438,175.20, 657,003.60 and 228,223.20 is: 342,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,175.20 : 657,003.60 = 228,223.20 : x
  2. Step 2: Convert to fraction form
    438,175.20/657,003.60 = 228,223.20/x
  3. Step 3: Cross multiply
    438,175.20x = 657,003.60 × 228,223.20
  4. Step 4: Simplify right side
    438,175.20x = 149,943,464,003.52
  5. Step 5: Solve for x
    x = 149,943,464,003.52/438,175.20
  6. Step 6: Final answer
    x = 342,199.80

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1.5x scale

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.