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Finding the Fourth Proportional to 270,171.60, 372,812.30 and 155,419.71

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Solution

The fourth proportional to 270,171.60, 372,812.30 and 155,419.71 is: 214,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,171.60 : 372,812.30 = 155,419.71 : x
  2. Step 2: Convert to fraction form
    270,171.60/372,812.30 = 155,419.71/x
  3. Step 3: Cross multiply
    270,171.60x = 372,812.30 × 155,419.71
  4. Step 4: Simplify right side
    270,171.60x = 57,942,377,958.11
  5. Step 5: Solve for x
    x = 57,942,377,958.11/270,171.60
  6. Step 6: Final answer
    x = 214,465.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.