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Finding the Fourth Proportional to 486,029.40, 729,048.42 and 149,071.62

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Solution

The fourth proportional to 486,029.40, 729,048.42 and 149,071.62 is: 223,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,029.40 : 729,048.42 = 149,071.62 : x
  2. Step 2: Convert to fraction form
    486,029.40/729,048.42 = 149,071.62/x
  3. Step 3: Cross multiply
    486,029.40x = 729,048.42 × 149,071.62
  4. Step 4: Simplify right side
    486,029.40x = 108,680,429,027.84
  5. Step 5: Solve for x
    x = 108,680,429,027.84/486,029.40
  6. Step 6: Final answer
    x = 223,608.76

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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.