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Finding the Fourth Proportional to 145,675.68, 218,477.52 and 40,489.44

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Solution

The fourth proportional to 145,675.68, 218,477.52 and 40,489.44 is: 60,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,675.68 : 218,477.52 = 40,489.44 : x
  2. Step 2: Convert to fraction form
    145,675.68/218,477.52 = 40,489.44/x
  3. Step 3: Cross multiply
    145,675.68x = 218,477.52 × 40,489.44
  4. Step 4: Simplify right side
    145,675.68x = 8,846,032,437.39
  5. Step 5: Solve for x
    x = 8,846,032,437.39/145,675.68
  6. Step 6: Final answer
    x = 60,724.15

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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.