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Finding the Fourth Proportional to 274,429.40, 411,903.30 and 169,453.40

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Solution

The fourth proportional to 274,429.40, 411,903.30 and 169,453.40 is: 254,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,429.40 : 411,903.30 = 169,453.40 : x
  2. Step 2: Convert to fraction form
    274,429.40/411,903.30 = 169,453.40/x
  3. Step 3: Cross multiply
    274,429.40x = 411,903.30 × 169,453.40
  4. Step 4: Simplify right side
    274,429.40x = 69,798,414,656.22
  5. Step 5: Solve for x
    x = 69,798,414,656.22/274,429.40
  6. Step 6: Final answer
    x = 254,340.15

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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.