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Finding the Fourth Proportional to 283,427.39, 424,720.70 and 208,179.71

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Solution

The fourth proportional to 283,427.39, 424,720.70 and 208,179.71 is: 311,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,427.39 : 424,720.70 = 208,179.71 : x
  2. Step 2: Convert to fraction form
    283,427.39/424,720.70 = 208,179.71/x
  3. Step 3: Cross multiply
    283,427.39x = 424,720.70 × 208,179.71
  4. Step 4: Simplify right side
    283,427.39x = 88,418,232,157.00
  5. Step 5: Solve for x
    x = 88,418,232,157.00/283,427.39
  6. Step 6: Final answer
    x = 311,960.79

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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.