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Finding the Fourth Proportional to 179,640.30, 269,460.45 and 74,424.30

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Solution

The fourth proportional to 179,640.30, 269,460.45 and 74,424.30 is: 111,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,640.30 : 269,460.45 = 74,424.30 : x
  2. Step 2: Convert to fraction form
    179,640.30/269,460.45 = 74,424.30/x
  3. Step 3: Cross multiply
    179,640.30x = 269,460.45 × 74,424.30
  4. Step 4: Simplify right side
    179,640.30x = 20,054,405,368.94
  5. Step 5: Solve for x
    x = 20,054,405,368.94/179,640.30
  6. Step 6: Final answer
    x = 111,636.45

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1.5x scale

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.