Home / 257,110.64-354,833.16-189,436.76

Finding the Fourth Proportional to 257,110.64, 354,833.16 and 189,436.76

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Solution

The fourth proportional to 257,110.64, 354,833.16 and 189,436.76 is: 261,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,110.64 : 354,833.16 = 189,436.76 : x
  2. Step 2: Convert to fraction form
    257,110.64/354,833.16 = 189,436.76/x
  3. Step 3: Cross multiply
    257,110.64x = 354,833.16 × 189,436.76
  4. Step 4: Simplify right side
    257,110.64x = 67,218,444,170.96
  5. Step 5: Solve for x
    x = 67,218,444,170.96/257,110.64
  6. Step 6: Final answer
    x = 261,437.82

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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.