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Finding the Fourth Proportional to 309,761.04, 427,474.08 and 173,824.14

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Solution

The fourth proportional to 309,761.04, 427,474.08 and 173,824.14 is: 239,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,761.04 : 427,474.08 = 173,824.14 : x
  2. Step 2: Convert to fraction form
    309,761.04/427,474.08 = 173,824.14/x
  3. Step 3: Cross multiply
    309,761.04x = 427,474.08 × 173,824.14
  4. Step 4: Simplify right side
    309,761.04x = 74,305,314,328.29
  5. Step 5: Solve for x
    x = 74,305,314,328.29/309,761.04
  6. Step 6: Final answer
    x = 239,879.47

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1.5x scale

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.