Home / 285,918.95-428,337.05-190,862.48

Finding the Fourth Proportional to 285,918.95, 428,337.05 and 190,862.48

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Solution

The fourth proportional to 285,918.95, 428,337.05 and 190,862.48 is: 285,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,918.95 : 428,337.05 = 190,862.48 : x
  2. Step 2: Convert to fraction form
    285,918.95/428,337.05 = 190,862.48/x
  3. Step 3: Cross multiply
    285,918.95x = 428,337.05 × 190,862.48
  4. Step 4: Simplify right side
    285,918.95x = 81,753,471,638.88
  5. Step 5: Solve for x
    x = 81,753,471,638.88/285,918.95
  6. Step 6: Final answer
    x = 285,932.33

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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.