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Finding the Fourth Proportional to 221,852.34, 306,156.24 and 121,250.34

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Solution

The fourth proportional to 221,852.34, 306,156.24 and 121,250.34 is: 167,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,852.34 : 306,156.24 = 121,250.34 : x
  2. Step 2: Convert to fraction form
    221,852.34/306,156.24 = 121,250.34/x
  3. Step 3: Cross multiply
    221,852.34x = 306,156.24 × 121,250.34
  4. Step 4: Simplify right side
    221,852.34x = 37,121,548,193.12
  5. Step 5: Solve for x
    x = 37,121,548,193.12/221,852.34
  6. Step 6: Final answer
    x = 167,325.48

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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.