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Finding the Fourth Proportional to 203,301.64, 280,557.91 and 112,659.11

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Solution

The fourth proportional to 203,301.64, 280,557.91 and 112,659.11 is: 155,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,301.64 : 280,557.91 = 112,659.11 : x
  2. Step 2: Convert to fraction form
    203,301.64/280,557.91 = 112,659.11/x
  3. Step 3: Cross multiply
    203,301.64x = 280,557.91 × 112,659.11
  4. Step 4: Simplify right side
    203,301.64x = 31,607,404,863.81
  5. Step 5: Solve for x
    x = 31,607,404,863.81/203,301.64
  6. Step 6: Final answer
    x = 155,470.49

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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.