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Finding the Fourth Proportional to 437,612.80, 655,958.40 and 171,270.40

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Solution

The fourth proportional to 437,612.80, 655,958.40 and 171,270.40 is: 256,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,612.80 : 655,958.40 = 171,270.40 : x
  2. Step 2: Convert to fraction form
    437,612.80/655,958.40 = 171,270.40/x
  3. Step 3: Cross multiply
    437,612.80x = 655,958.40 × 171,270.40
  4. Step 4: Simplify right side
    437,612.80x = 112,346,257,551.36
  5. Step 5: Solve for x
    x = 112,346,257,551.36/437,612.80
  6. Step 6: Final answer
    x = 256,725.25

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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.