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Finding the Fourth Proportional to 249,101.62, 343,768.53 and 135,930.58

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Solution

The fourth proportional to 249,101.62, 343,768.53 and 135,930.58 is: 187,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,101.62 : 343,768.53 = 135,930.58 : x
  2. Step 2: Convert to fraction form
    249,101.62/343,768.53 = 135,930.58/x
  3. Step 3: Cross multiply
    249,101.62x = 343,768.53 × 135,930.58
  4. Step 4: Simplify right side
    249,101.62x = 46,728,655,668.65
  5. Step 5: Solve for x
    x = 46,728,655,668.65/249,101.62
  6. Step 6: Final answer
    x = 187,588.73

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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.