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Finding the Fourth Proportional to 203,370.46, 280,660.62 and 112,728.36

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Solution

The fourth proportional to 203,370.46, 280,660.62 and 112,728.36 is: 155,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,370.46 : 280,660.62 = 112,728.36 : x
  2. Step 2: Convert to fraction form
    203,370.46/280,660.62 = 112,728.36/x
  3. Step 3: Cross multiply
    203,370.46x = 280,660.62 × 112,728.36
  4. Step 4: Simplify right side
    203,370.46x = 31,638,411,409.18
  5. Step 5: Solve for x
    x = 31,638,411,409.18/203,370.46
  6. Step 6: Final answer
    x = 155,570.34

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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.