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Finding the Fourth Proportional to 498,668.64, 748,067.58 and 228,731.70

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Solution

The fourth proportional to 498,668.64, 748,067.58 and 228,731.70 is: 343,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,668.64 : 748,067.58 = 228,731.70 : x
  2. Step 2: Convert to fraction form
    498,668.64/748,067.58 = 228,731.70/x
  3. Step 3: Cross multiply
    498,668.64x = 748,067.58 × 228,731.70
  4. Step 4: Simplify right side
    498,668.64x = 171,106,769,288.29
  5. Step 5: Solve for x
    x = 171,106,769,288.29/498,668.64
  6. Step 6: Final answer
    x = 343,127.19

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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.