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Finding the Fourth Proportional to 249,658.34, 344,528.51 and 136,481.09

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Solution

The fourth proportional to 249,658.34, 344,528.51 and 136,481.09 is: 188,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,658.34 : 344,528.51 = 136,481.09 : x
  2. Step 2: Convert to fraction form
    249,658.34/344,528.51 = 136,481.09/x
  3. Step 3: Cross multiply
    249,658.34x = 344,528.51 × 136,481.09
  4. Step 4: Simplify right side
    249,658.34x = 47,021,624,175.83
  5. Step 5: Solve for x
    x = 47,021,624,175.83/249,658.34
  6. Step 6: Final answer
    x = 188,343.90

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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.