Home / 438,176.20-657,005.10-228,224.20

Finding the Fourth Proportional to 438,176.20, 657,005.10 and 228,224.20

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Solution

The fourth proportional to 438,176.20, 657,005.10 and 228,224.20 is: 342,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,176.20 : 657,005.10 = 228,224.20 : x
  2. Step 2: Convert to fraction form
    438,176.20/657,005.10 = 228,224.20/x
  3. Step 3: Cross multiply
    438,176.20x = 657,005.10 × 228,224.20
  4. Step 4: Simplify right side
    438,176.20x = 149,944,463,343.42
  5. Step 5: Solve for x
    x = 149,944,463,343.42/438,176.20
  6. Step 6: Final answer
    x = 342,201.30

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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.