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Finding the Fourth Proportional to 203,781.96, 305,340.90 and 124,730.28

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Solution

The fourth proportional to 203,781.96, 305,340.90 and 124,730.28 is: 186,892.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,781.96 : 305,340.90 = 124,730.28 : x
  2. Step 2: Convert to fraction form
    203,781.96/305,340.90 = 124,730.28/x
  3. Step 3: Cross multiply
    203,781.96x = 305,340.90 × 124,730.28
  4. Step 4: Simplify right side
    203,781.96x = 38,085,255,952.45
  5. Step 5: Solve for x
    x = 38,085,255,952.45/203,781.96
  6. Step 6: Final answer
    x = 186,892.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.