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Finding the Fourth Proportional to 203,247.46, 280,458.82 and 112,580.96

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Solution

The fourth proportional to 203,247.46, 280,458.82 and 112,580.96 is: 155,349.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,247.46 : 280,458.82 = 112,580.96 : x
  2. Step 2: Convert to fraction form
    203,247.46/280,458.82 = 112,580.96/x
  3. Step 3: Cross multiply
    203,247.46x = 280,458.82 × 112,580.96
  4. Step 4: Simplify right side
    203,247.46x = 31,574,321,934.50
  5. Step 5: Solve for x
    x = 31,574,321,934.50/203,247.46
  6. Step 6: Final answer
    x = 155,349.16

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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.