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Finding the Fourth Proportional to 207,340, 286,163.76 and 156,951.52

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Solution

The fourth proportional to 207,340, 286,163.76 and 156,951.52 is: 216,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,340 : 286,163.76 = 156,951.52 : x
  2. Step 2: Convert to fraction form
    207,340/286,163.76 = 156,951.52/x
  3. Step 3: Cross multiply
    207,340x = 286,163.76 × 156,951.52
  4. Step 4: Simplify right side
    207,340x = 44,913,837,100.92
  5. Step 5: Solve for x
    x = 44,913,837,100.92/207,340
  6. Step 6: Final answer
    x = 216,619.26

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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.