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Finding the Fourth Proportional to 221,353.52, 305,467.90 and 125,866.07

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Solution

The fourth proportional to 221,353.52, 305,467.90 and 125,866.07 is: 173,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,353.52 : 305,467.90 = 125,866.07 : x
  2. Step 2: Convert to fraction form
    221,353.52/305,467.90 = 125,866.07/x
  3. Step 3: Cross multiply
    221,353.52x = 305,467.90 × 125,866.07
  4. Step 4: Simplify right side
    221,353.52x = 38,448,044,084.15
  5. Step 5: Solve for x
    x = 38,448,044,084.15/221,353.52
  6. Step 6: Final answer
    x = 173,695.20

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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.