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Finding the Fourth Proportional to 269,838.76, 372,030.96 and 221,262.52

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Solution

The fourth proportional to 269,838.76, 372,030.96 and 221,262.52 is: 305,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,838.76 : 372,030.96 = 221,262.52 : x
  2. Step 2: Convert to fraction form
    269,838.76/372,030.96 = 221,262.52/x
  3. Step 3: Cross multiply
    269,838.76x = 372,030.96 × 221,262.52
  4. Step 4: Simplify right side
    269,838.76x = 82,316,507,727.62
  5. Step 5: Solve for x
    x = 82,316,507,727.62/269,838.76
  6. Step 6: Final answer
    x = 305,058.13

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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.