Home / 228,964.80-343,287.20-135,422.40

Finding the Fourth Proportional to 228,964.80, 343,287.20 and 135,422.40

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Solution

The fourth proportional to 228,964.80, 343,287.20 and 135,422.40 is: 203,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,964.80 : 343,287.20 = 135,422.40 : x
  2. Step 2: Convert to fraction form
    228,964.80/343,287.20 = 135,422.40/x
  3. Step 3: Cross multiply
    228,964.80x = 343,287.20 × 135,422.40
  4. Step 4: Simplify right side
    228,964.80x = 46,488,776,513.28
  5. Step 5: Solve for x
    x = 46,488,776,513.28/228,964.80
  6. Step 6: Final answer
    x = 203,038.97

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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.