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Finding the Fourth Proportional to 200,295.92, 276,595.74 and 128,800.15

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Solution

The fourth proportional to 200,295.92, 276,595.74 and 128,800.15 is: 177,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,295.92 : 276,595.74 = 128,800.15 : x
  2. Step 2: Convert to fraction form
    200,295.92/276,595.74 = 128,800.15/x
  3. Step 3: Cross multiply
    200,295.92x = 276,595.74 × 128,800.15
  4. Step 4: Simplify right side
    200,295.92x = 35,625,572,109.87
  5. Step 5: Solve for x
    x = 35,625,572,109.87/200,295.92
  6. Step 6: Final answer
    x = 177,864.69

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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.