Home / 204,316.40-306,328.80-91,904.60

Finding the Fourth Proportional to 204,316.40, 306,328.80 and 91,904.60

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Solution

The fourth proportional to 204,316.40, 306,328.80 and 91,904.60 is: 137,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,316.40 : 306,328.80 = 91,904.60 : x
  2. Step 2: Convert to fraction form
    204,316.40/306,328.80 = 91,904.60/x
  3. Step 3: Cross multiply
    204,316.40x = 306,328.80 × 91,904.60
  4. Step 4: Simplify right side
    204,316.40x = 28,153,025,832.48
  5. Step 5: Solve for x
    x = 28,153,025,832.48/204,316.40
  6. Step 6: Final answer
    x = 137,791.32

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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.