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Finding the Fourth Proportional to 249,395, 344,165.10 and 136,218.02

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Solution

The fourth proportional to 249,395, 344,165.10 and 136,218.02 is: 187,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,395 : 344,165.10 = 136,218.02 : x
  2. Step 2: Convert to fraction form
    249,395/344,165.10 = 136,218.02/x
  3. Step 3: Cross multiply
    249,395x = 344,165.10 × 136,218.02
  4. Step 4: Simplify right side
    249,395x = 46,881,488,475.10
  5. Step 5: Solve for x
    x = 46,881,488,475.10/249,395
  6. Step 6: Final answer
    x = 187,980.87

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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.