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Finding the Fourth Proportional to 308,353.77, 425,659.39 and 187,533.83

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Solution

The fourth proportional to 308,353.77, 425,659.39 and 187,533.83 is: 258,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,353.77 : 425,659.39 = 187,533.83 : x
  2. Step 2: Convert to fraction form
    308,353.77/425,659.39 = 187,533.83/x
  3. Step 3: Cross multiply
    308,353.77x = 425,659.39 × 187,533.83
  4. Step 4: Simplify right side
    308,353.77x = 79,825,536,277.48
  5. Step 5: Solve for x
    x = 79,825,536,277.48/308,353.77
  6. Step 6: Final answer
    x = 258,876.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.