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Finding the Fourth Proportional to 229,699.08, 317,081.94 and 215,350.92

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Solution

The fourth proportional to 229,699.08, 317,081.94 and 215,350.92 is: 297,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,699.08 : 317,081.94 = 215,350.92 : x
  2. Step 2: Convert to fraction form
    229,699.08/317,081.94 = 215,350.92/x
  3. Step 3: Cross multiply
    229,699.08x = 317,081.94 × 215,350.92
  4. Step 4: Simplify right side
    229,699.08x = 68,283,887,494.38
  5. Step 5: Solve for x
    x = 68,283,887,494.38/229,699.08
  6. Step 6: Final answer
    x = 297,275.41

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1.5x scale

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.