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Finding the Fourth Proportional to 203,292.06, 280,552.86 and 122,718.12

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Solution

The fourth proportional to 203,292.06, 280,552.86 and 122,718.12 is: 169,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,292.06 : 280,552.86 = 122,718.12 : x
  2. Step 2: Convert to fraction form
    203,292.06/280,552.86 = 122,718.12/x
  3. Step 3: Cross multiply
    203,292.06x = 280,552.86 × 122,718.12
  4. Step 4: Simplify right side
    203,292.06x = 34,428,919,539.82
  5. Step 5: Solve for x
    x = 34,428,919,539.82/203,292.06
  6. Step 6: Final answer
    x = 169,356.93

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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.