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Finding the Fourth Proportional to 270,004.74, 372,599.31 and 149,143.44

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Solution

The fourth proportional to 270,004.74, 372,599.31 and 149,143.44 is: 205,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,004.74 : 372,599.31 = 149,143.44 : x
  2. Step 2: Convert to fraction form
    270,004.74/372,599.31 = 149,143.44/x
  3. Step 3: Cross multiply
    270,004.74x = 372,599.31 × 149,143.44
  4. Step 4: Simplify right side
    270,004.74x = 55,570,742,835.03
  5. Step 5: Solve for x
    x = 55,570,742,835.03/270,004.74
  6. Step 6: Final answer
    x = 205,813.95

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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.