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Finding the Fourth Proportional to 254,655.50, 381,800.39 and 119,643.48

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Solution

The fourth proportional to 254,655.50, 381,800.39 and 119,643.48 is: 179,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,655.50 : 381,800.39 = 119,643.48 : x
  2. Step 2: Convert to fraction form
    254,655.50/381,800.39 = 119,643.48/x
  3. Step 3: Cross multiply
    254,655.50x = 381,800.39 × 119,643.48
  4. Step 4: Simplify right side
    254,655.50x = 45,679,926,726.74
  5. Step 5: Solve for x
    x = 45,679,926,726.74/254,655.50
  6. Step 6: Final answer
    x = 179,379.31

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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.