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Finding the Fourth Proportional to 203,472.79, 280,794.03 and 112,823.46

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Solution

The fourth proportional to 203,472.79, 280,794.03 and 112,823.46 is: 155,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472.79 : 280,794.03 = 112,823.46 : x
  2. Step 2: Convert to fraction form
    203,472.79/280,794.03 = 112,823.46/x
  3. Step 3: Cross multiply
    203,472.79x = 280,794.03 × 112,823.46
  4. Step 4: Simplify right side
    203,472.79x = 31,680,153,588.86
  5. Step 5: Solve for x
    x = 31,680,153,588.86/203,472.79
  6. Step 6: Final answer
    x = 155,697.25

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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.