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Finding the Fourth Proportional to 343,426.62, 515,195.19 and 165,946.68

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Solution

The fourth proportional to 343,426.62, 515,195.19 and 165,946.68 is: 248,946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,426.62 : 515,195.19 = 165,946.68 : x
  2. Step 2: Convert to fraction form
    343,426.62/515,195.19 = 165,946.68/x
  3. Step 3: Cross multiply
    343,426.62x = 515,195.19 × 165,946.68
  4. Step 4: Simplify right side
    343,426.62x = 85,494,931,332.47
  5. Step 5: Solve for x
    x = 85,494,931,332.47/343,426.62
  6. Step 6: Final answer
    x = 248,946.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.