Home / 438,047.20-656,811.60-228,095.20

Finding the Fourth Proportional to 438,047.20, 656,811.60 and 228,095.20

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Solution

The fourth proportional to 438,047.20, 656,811.60 and 228,095.20 is: 342,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,047.20 : 656,811.60 = 228,095.20 : x
  2. Step 2: Convert to fraction form
    438,047.20/656,811.60 = 228,095.20/x
  3. Step 3: Cross multiply
    438,047.20x = 656,811.60 × 228,095.20
  4. Step 4: Simplify right side
    438,047.20x = 149,815,573,264.32
  5. Step 5: Solve for x
    x = 149,815,573,264.32/438,047.20
  6. Step 6: Final answer
    x = 342,007.83

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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.