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Finding the Fourth Proportional to 340,062.92, 469,290.42 and 187,103.12

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Solution

The fourth proportional to 340,062.92, 469,290.42 and 187,103.12 is: 258,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,062.92 : 469,290.42 = 187,103.12 : x
  2. Step 2: Convert to fraction form
    340,062.92/469,290.42 = 187,103.12/x
  3. Step 3: Cross multiply
    340,062.92x = 469,290.42 × 187,103.12
  4. Step 4: Simplify right side
    340,062.92x = 87,805,699,421.66
  5. Step 5: Solve for x
    x = 87,805,699,421.66/340,062.92
  6. Step 6: Final answer
    x = 258,204.28

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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.