Home / 325,215.72-487,702.35-111,924.05

Finding the Fourth Proportional to 325,215.72, 487,702.35 and 111,924.05

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Solution

The fourth proportional to 325,215.72, 487,702.35 and 111,924.05 is: 167,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,215.72 : 487,702.35 = 111,924.05 : x
  2. Step 2: Convert to fraction form
    325,215.72/487,702.35 = 111,924.05/x
  3. Step 3: Cross multiply
    325,215.72x = 487,702.35 × 111,924.05
  4. Step 4: Simplify right side
    325,215.72x = 54,585,619,768.01
  5. Step 5: Solve for x
    x = 54,585,619,768.01/325,215.72
  6. Step 6: Final answer
    x = 167,844.35

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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.