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Finding the Fourth Proportional to 305,479.84, 458,365.56 and 147,620.56

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Solution

The fourth proportional to 305,479.84, 458,365.56 and 147,620.56 is: 221,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,479.84 : 458,365.56 = 147,620.56 : x
  2. Step 2: Convert to fraction form
    305,479.84/458,365.56 = 147,620.56/x
  3. Step 3: Cross multiply
    305,479.84x = 458,365.56 × 147,620.56
  4. Step 4: Simplify right side
    305,479.84x = 67,664,180,651.91
  5. Step 5: Solve for x
    x = 67,664,180,651.91/305,479.84
  6. Step 6: Final answer
    x = 221,501.30

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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.