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Finding the Fourth Proportional to 221,397.58, 305,627.61 and 149,994.46

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Solution

The fourth proportional to 221,397.58, 305,627.61 and 149,994.46 is: 207,059.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,397.58 : 305,627.61 = 149,994.46 : x
  2. Step 2: Convert to fraction form
    221,397.58/305,627.61 = 149,994.46/x
  3. Step 3: Cross multiply
    221,397.58x = 305,627.61 × 149,994.46
  4. Step 4: Simplify right side
    221,397.58x = 45,842,448,323.04
  5. Step 5: Solve for x
    x = 45,842,448,323.04/221,397.58
  6. Step 6: Final answer
    x = 207,059.39

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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.