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Finding the Fourth Proportional to 249,648, 344,514.24 and 136,471.56

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Solution

The fourth proportional to 249,648, 344,514.24 and 136,471.56 is: 188,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,648 : 344,514.24 = 136,471.56 : x
  2. Step 2: Convert to fraction form
    249,648/344,514.24 = 136,471.56/x
  3. Step 3: Cross multiply
    249,648x = 344,514.24 × 136,471.56
  4. Step 4: Simplify right side
    249,648x = 47,016,395,775.01
  5. Step 5: Solve for x
    x = 47,016,395,775.01/249,648
  6. Step 6: Final answer
    x = 188,330.75

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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.