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Finding the Fourth Proportional to 221,376.52, 305,498.20 and 125,883.24

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Solution

The fourth proportional to 221,376.52, 305,498.20 and 125,883.24 is: 173,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,376.52 : 305,498.20 = 125,883.24 : x
  2. Step 2: Convert to fraction form
    221,376.52/305,498.20 = 125,883.24/x
  3. Step 3: Cross multiply
    221,376.52x = 305,498.20 × 125,883.24
  4. Step 4: Simplify right side
    221,376.52x = 38,457,103,230.17
  5. Step 5: Solve for x
    x = 38,457,103,230.17/221,376.52
  6. Step 6: Final answer
    x = 173,718.08

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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.