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Finding the Fourth Proportional to 169,653.40, 254,480.10 and 143,409.40

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Solution

The fourth proportional to 169,653.40, 254,480.10 and 143,409.40 is: 215,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,653.40 : 254,480.10 = 143,409.40 : x
  2. Step 2: Convert to fraction form
    169,653.40/254,480.10 = 143,409.40/x
  3. Step 3: Cross multiply
    169,653.40x = 254,480.10 × 143,409.40
  4. Step 4: Simplify right side
    169,653.40x = 36,494,838,452.94
  5. Step 5: Solve for x
    x = 36,494,838,452.94/169,653.40
  6. Step 6: Final answer
    x = 215,114.10

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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.