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Finding the Fourth Proportional to 203,450.64, 280,750.66 and 112,801.32

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Solution

The fourth proportional to 203,450.64, 280,750.66 and 112,801.32 is: 155,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,450.64 : 280,750.66 = 112,801.32 : x
  2. Step 2: Convert to fraction form
    203,450.64/280,750.66 = 112,801.32/x
  3. Step 3: Cross multiply
    203,450.64x = 280,750.66 × 112,801.32
  4. Step 4: Simplify right side
    203,450.64x = 31,669,045,038.87
  5. Step 5: Solve for x
    x = 31,669,045,038.87/203,450.64
  6. Step 6: Final answer
    x = 155,659.60

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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.