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Finding the Fourth Proportional to 270,140.53, 372,783.90 and 149,279.32

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Solution

The fourth proportional to 270,140.53, 372,783.90 and 149,279.32 is: 205,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,140.53 : 372,783.90 = 149,279.32 : x
  2. Step 2: Convert to fraction form
    270,140.53/372,783.90 = 149,279.32/x
  3. Step 3: Cross multiply
    270,140.53x = 372,783.90 × 149,279.32
  4. Step 4: Simplify right side
    270,140.53x = 55,648,927,098.95
  5. Step 5: Solve for x
    x = 55,648,927,098.95/270,140.53
  6. Step 6: Final answer
    x = 205,999.92

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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.