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Finding the Fourth Proportional to 253,274.92, 347,689.13 and 217,402.65

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Solution

The fourth proportional to 253,274.92, 347,689.13 and 217,402.65 is: 298,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,274.92 : 347,689.13 = 217,402.65 : x
  2. Step 2: Convert to fraction form
    253,274.92/347,689.13 = 217,402.65/x
  3. Step 3: Cross multiply
    253,274.92x = 347,689.13 × 217,402.65
  4. Step 4: Simplify right side
    253,274.92x = 75,588,537,151.18
  5. Step 5: Solve for x
    x = 75,588,537,151.18/253,274.92
  6. Step 6: Final answer
    x = 298,444.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.