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Finding the Fourth Proportional to 203,362.70, 280,657.33 and 112,747.08

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Solution

The fourth proportional to 203,362.70, 280,657.33 and 112,747.08 is: 155,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,362.70 : 280,657.33 = 112,747.08 : x
  2. Step 2: Convert to fraction form
    203,362.70/280,657.33 = 112,747.08/x
  3. Step 3: Cross multiply
    203,362.70x = 280,657.33 × 112,747.08
  4. Step 4: Simplify right side
    203,362.70x = 31,643,295,208.69
  5. Step 5: Solve for x
    x = 31,643,295,208.69/203,362.70
  6. Step 6: Final answer
    x = 155,600.29

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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.