Home / 621,851.20-932,546.40-201,140.80

Finding the Fourth Proportional to 621,851.20, 932,546.40 and 201,140.80

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Solution

The fourth proportional to 621,851.20, 932,546.40 and 201,140.80 is: 301,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,851.20 : 932,546.40 = 201,140.80 : x
  2. Step 2: Convert to fraction form
    621,851.20/932,546.40 = 201,140.80/x
  3. Step 3: Cross multiply
    621,851.20x = 932,546.40 × 201,140.80
  4. Step 4: Simplify right side
    621,851.20x = 187,573,128,933.12
  5. Step 5: Solve for x
    x = 187,573,128,933.12/621,851.20
  6. Step 6: Final answer
    x = 301,636.68

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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.