Home / 285,192.36-428,209.08-159,079

Finding the Fourth Proportional to 285,192.36, 428,209.08 and 159,079

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Solution

The fourth proportional to 285,192.36, 428,209.08 and 159,079 is: 238,853.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,192.36 : 428,209.08 = 159,079 : x
  2. Step 2: Convert to fraction form
    285,192.36/428,209.08 = 159,079/x
  3. Step 3: Cross multiply
    285,192.36x = 428,209.08 × 159,079
  4. Step 4: Simplify right side
    285,192.36x = 68,119,072,237.32
  5. Step 5: Solve for x
    x = 68,119,072,237.32/285,192.36
  6. Step 6: Final answer
    x = 238,853.08

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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.