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Finding the Fourth Proportional to 315,410.06, 435,278.13 and 188,082.92

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Solution

The fourth proportional to 315,410.06, 435,278.13 and 188,082.92 is: 259,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,410.06 : 435,278.13 = 188,082.92 : x
  2. Step 2: Convert to fraction form
    315,410.06/435,278.13 = 188,082.92/x
  3. Step 3: Cross multiply
    315,410.06x = 435,278.13 × 188,082.92
  4. Step 4: Simplify right side
    315,410.06x = 81,868,381,702.54
  5. Step 5: Solve for x
    x = 81,868,381,702.54/315,410.06
  6. Step 6: Final answer
    x = 259,561.73

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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.