Home / 285,936.24-428,907.60-98,904

Finding the Fourth Proportional to 285,936.24, 428,907.60 and 98,904

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Solution

The fourth proportional to 285,936.24, 428,907.60 and 98,904 is: 148,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,936.24 : 428,907.60 = 98,904 : x
  2. Step 2: Convert to fraction form
    285,936.24/428,907.60 = 98,904/x
  3. Step 3: Cross multiply
    285,936.24x = 428,907.60 × 98,904
  4. Step 4: Simplify right side
    285,936.24x = 42,420,677,270.40
  5. Step 5: Solve for x
    x = 42,420,677,270.40/285,936.24
  6. Step 6: Final answer
    x = 148,357.12

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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.