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Finding the Fourth Proportional to 398,343.49, 549,696.83 and 226,260.92

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Solution

The fourth proportional to 398,343.49, 549,696.83 and 226,260.92 is: 312,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,343.49 : 549,696.83 = 226,260.92 : x
  2. Step 2: Convert to fraction form
    398,343.49/549,696.83 = 226,260.92/x
  3. Step 3: Cross multiply
    398,343.49x = 549,696.83 × 226,260.92
  4. Step 4: Simplify right side
    398,343.49x = 124,374,912,505.33
  5. Step 5: Solve for x
    x = 124,374,912,505.33/398,343.49
  6. Step 6: Final answer
    x = 312,230.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.