Home / 315,111.78-434,891.02-179,166.09

Finding the Fourth Proportional to 315,111.78, 434,891.02 and 179,166.09

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Solution

The fourth proportional to 315,111.78, 434,891.02 and 179,166.09 is: 247,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,111.78 : 434,891.02 = 179,166.09 : x
  2. Step 2: Convert to fraction form
    315,111.78/434,891.02 = 179,166.09/x
  3. Step 3: Cross multiply
    315,111.78x = 434,891.02 × 179,166.09
  4. Step 4: Simplify right side
    315,111.78x = 77,917,724,644.47
  5. Step 5: Solve for x
    x = 77,917,724,644.47/315,111.78
  6. Step 6: Final answer
    x = 247,270.11

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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.