Home / 257,152.06-354,867.51-143,976.70

Finding the Fourth Proportional to 257,152.06, 354,867.51 and 143,976.70

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Solution

The fourth proportional to 257,152.06, 354,867.51 and 143,976.70 is: 198,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,152.06 : 354,867.51 = 143,976.70 : x
  2. Step 2: Convert to fraction form
    257,152.06/354,867.51 = 143,976.70/x
  3. Step 3: Cross multiply
    257,152.06x = 354,867.51 × 143,976.70
  4. Step 4: Simplify right side
    257,152.06x = 51,092,653,027.02
  5. Step 5: Solve for x
    x = 51,092,653,027.02/257,152.06
  6. Step 6: Final answer
    x = 198,686.54

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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.