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Finding the Fourth Proportional to 270,048.87, 372,656.03 and 155,318.85

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Solution

The fourth proportional to 270,048.87, 372,656.03 and 155,318.85 is: 214,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,048.87 : 372,656.03 = 155,318.85 : x
  2. Step 2: Convert to fraction form
    270,048.87/372,656.03 = 155,318.85/x
  3. Step 3: Cross multiply
    270,048.87x = 372,656.03 × 155,318.85
  4. Step 4: Simplify right side
    270,048.87x = 57,880,505,248.57
  5. Step 5: Solve for x
    x = 57,880,505,248.57/270,048.87
  6. Step 6: Final answer
    x = 214,333.45

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