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Finding the Fourth Proportional to 145,648.56, 218,484.63 and 40,467.54

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Solution

The fourth proportional to 145,648.56, 218,484.63 and 40,467.54 is: 60,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,648.56 : 218,484.63 = 40,467.54 : x
  2. Step 2: Convert to fraction form
    145,648.56/218,484.63 = 40,467.54/x
  3. Step 3: Cross multiply
    145,648.56x = 218,484.63 × 40,467.54
  4. Step 4: Simplify right side
    145,648.56x = 8,841,535,503.91
  5. Step 5: Solve for x
    x = 8,841,535,503.91/145,648.56
  6. Step 6: Final answer
    x = 60,704.59

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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.