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Finding the Fourth Proportional to 203,328.01, 280,525.44 and 122,724.91

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Solution

The fourth proportional to 203,328.01, 280,525.44 and 122,724.91 is: 169,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,328.01 : 280,525.44 = 122,724.91 : x
  2. Step 2: Convert to fraction form
    203,328.01/280,525.44 = 122,724.91/x
  3. Step 3: Cross multiply
    203,328.01x = 280,525.44 × 122,724.91
  4. Step 4: Simplify right side
    203,328.01x = 34,427,459,376.71
  5. Step 5: Solve for x
    x = 34,427,459,376.71/203,328.01
  6. Step 6: Final answer
    x = 169,319.81

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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.