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Finding the Fourth Proportional to 203,246.98, 280,458.13 and 112,580.45

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Solution

The fourth proportional to 203,246.98, 280,458.13 and 112,580.45 is: 155,348.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,246.98 : 280,458.13 = 112,580.45 : x
  2. Step 2: Convert to fraction form
    203,246.98/280,458.13 = 112,580.45/x
  3. Step 3: Cross multiply
    203,246.98x = 280,458.13 × 112,580.45
  4. Step 4: Simplify right side
    203,246.98x = 31,574,102,481.56
  5. Step 5: Solve for x
    x = 31,574,102,481.56/203,246.98
  6. Step 6: Final answer
    x = 155,348.45

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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.