Home / 314,570.39-434,110.79-171,331.61

Finding the Fourth Proportional to 314,570.39, 434,110.79 and 171,331.61

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Solution

The fourth proportional to 314,570.39, 434,110.79 and 171,331.61 is: 236,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,570.39 : 434,110.79 = 171,331.61 : x
  2. Step 2: Convert to fraction form
    314,570.39/434,110.79 = 171,331.61/x
  3. Step 3: Cross multiply
    314,570.39x = 434,110.79 × 171,331.61
  4. Step 4: Simplify right side
    314,570.39x = 74,376,898,826.85
  5. Step 5: Solve for x
    x = 74,376,898,826.85/314,570.39
  6. Step 6: Final answer
    x = 236,439.61

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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.