Home / 285,947.36-428,621.72-96,342.22

Finding the Fourth Proportional to 285,947.36, 428,621.72 and 96,342.22

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Solution

The fourth proportional to 285,947.36, 428,621.72 and 96,342.22 is: 144,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,947.36 : 428,621.72 = 96,342.22 : x
  2. Step 2: Convert to fraction form
    285,947.36/428,621.72 = 96,342.22/x
  3. Step 3: Cross multiply
    285,947.36x = 428,621.72 × 96,342.22
  4. Step 4: Simplify right side
    285,947.36x = 41,294,365,901.91
  5. Step 5: Solve for x
    x = 41,294,365,901.91/285,947.36
  6. Step 6: Final answer
    x = 144,412.48

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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.