Home / 438,054.20-656,822.10-228,102.20

Finding the Fourth Proportional to 438,054.20, 656,822.10 and 228,102.20

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Solution

The fourth proportional to 438,054.20, 656,822.10 and 228,102.20 is: 342,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,054.20 : 656,822.10 = 228,102.20 : x
  2. Step 2: Convert to fraction form
    438,054.20/656,822.10 = 228,102.20/x
  3. Step 3: Cross multiply
    438,054.20x = 656,822.10 × 228,102.20
  4. Step 4: Simplify right side
    438,054.20x = 149,822,566,018.62
  5. Step 5: Solve for x
    x = 149,822,566,018.62/438,054.20
  6. Step 6: Final answer
    x = 342,018.33

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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.