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Finding the Fourth Proportional to 270,125.40, 404,940.42 and 103,788.12

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Solution

The fourth proportional to 270,125.40, 404,940.42 and 103,788.12 is: 155,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,125.40 : 404,940.42 = 103,788.12 : x
  2. Step 2: Convert to fraction form
    270,125.40/404,940.42 = 103,788.12/x
  3. Step 3: Cross multiply
    270,125.40x = 404,940.42 × 103,788.12
  4. Step 4: Simplify right side
    270,125.40x = 42,028,004,903.81
  5. Step 5: Solve for x
    x = 42,028,004,903.81/270,125.40
  6. Step 6: Final answer
    x = 155,587.02

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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.