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Finding the Fourth Proportional to 249,345, 344,097.99 and 136,167.75

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Solution

The fourth proportional to 249,345, 344,097.99 and 136,167.75 is: 187,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,345 : 344,097.99 = 136,167.75 : x
  2. Step 2: Convert to fraction form
    249,345/344,097.99 = 136,167.75/x
  3. Step 3: Cross multiply
    249,345x = 344,097.99 × 136,167.75
  4. Step 4: Simplify right side
    249,345x = 46,855,049,077.82
  5. Step 5: Solve for x
    x = 46,855,049,077.82/249,345
  6. Step 6: Final answer
    x = 187,912.53

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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.