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Finding the Fourth Proportional to 272,703.81, 408,918.83 and 158,888.46

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Solution

The fourth proportional to 272,703.81, 408,918.83 and 158,888.46 is: 238,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,703.81 : 408,918.83 = 158,888.46 : x
  2. Step 2: Convert to fraction form
    272,703.81/408,918.83 = 158,888.46/x
  3. Step 3: Cross multiply
    272,703.81x = 408,918.83 × 158,888.46
  4. Step 4: Simplify right side
    272,703.81x = 64,972,483,163.70
  5. Step 5: Solve for x
    x = 64,972,483,163.70/272,703.81
  6. Step 6: Final answer
    x = 238,252.94

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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.