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Finding the Fourth Proportional to 305,983.22, 458,646.69 and 147,994.34

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Solution

The fourth proportional to 305,983.22, 458,646.69 and 147,994.34 is: 221,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,983.22 : 458,646.69 = 147,994.34 : x
  2. Step 2: Convert to fraction form
    305,983.22/458,646.69 = 147,994.34/x
  3. Step 3: Cross multiply
    305,983.22x = 458,646.69 × 147,994.34
  4. Step 4: Simplify right side
    305,983.22x = 67,877,114,179.73
  5. Step 5: Solve for x
    x = 67,877,114,179.73/305,983.22
  6. Step 6: Final answer
    x = 221,832.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.