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Finding the Fourth Proportional to 203,506.37, 280,820.24 and 112,862.06

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Solution

The fourth proportional to 203,506.37, 280,820.24 and 112,862.06 is: 155,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,506.37 : 280,820.24 = 112,862.06 : x
  2. Step 2: Convert to fraction form
    203,506.37/280,820.24 = 112,862.06/x
  3. Step 3: Cross multiply
    203,506.37x = 280,820.24 × 112,862.06
  4. Step 4: Simplify right side
    203,506.37x = 31,693,950,776.09
  5. Step 5: Solve for x
    x = 31,693,950,776.09/203,506.37
  6. Step 6: Final answer
    x = 155,739.35

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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.