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Finding the Fourth Proportional to 305,871.90, 458,872.65 and 92,622.30

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Solution

The fourth proportional to 305,871.90, 458,872.65 and 92,622.30 is: 138,953.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,871.90 : 458,872.65 = 92,622.30 : x
  2. Step 2: Convert to fraction form
    305,871.90/458,872.65 = 92,622.30/x
  3. Step 3: Cross multiply
    305,871.90x = 458,872.65 × 92,622.30
  4. Step 4: Simplify right side
    305,871.90x = 42,501,840,250.10
  5. Step 5: Solve for x
    x = 42,501,840,250.10/305,871.90
  6. Step 6: Final answer
    x = 138,953.07

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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.