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Finding the Fourth Proportional to 203,217.63, 280,436.66 and 112,573.32

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Solution

The fourth proportional to 203,217.63, 280,436.66 and 112,573.32 is: 155,349.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,217.63 : 280,436.66 = 112,573.32 : x
  2. Step 2: Convert to fraction form
    203,217.63/280,436.66 = 112,573.32/x
  3. Step 3: Cross multiply
    203,217.63x = 280,436.66 × 112,573.32
  4. Step 4: Simplify right side
    203,217.63x = 31,569,684,673.56
  5. Step 5: Solve for x
    x = 31,569,684,673.56/203,217.63
  6. Step 6: Final answer
    x = 155,349.15

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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.