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Finding the Fourth Proportional to 315,019.13, 434,737.33 and 179,058.80

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Solution

The fourth proportional to 315,019.13, 434,737.33 and 179,058.80 is: 247,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,019.13 : 434,737.33 = 179,058.80 : x
  2. Step 2: Convert to fraction form
    315,019.13/434,737.33 = 179,058.80/x
  3. Step 3: Cross multiply
    315,019.13x = 434,737.33 × 179,058.80
  4. Step 4: Simplify right side
    315,019.13x = 77,843,545,264.20
  5. Step 5: Solve for x
    x = 77,843,545,264.20/315,019.13
  6. Step 6: Final answer
    x = 247,107.36

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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.