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Finding the Fourth Proportional to 173,507.60, 259,872.60 and 142,403.60

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Solution

The fourth proportional to 173,507.60, 259,872.60 and 142,403.60 is: 213,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,507.60 : 259,872.60 = 142,403.60 : x
  2. Step 2: Convert to fraction form
    173,507.60/259,872.60 = 142,403.60/x
  3. Step 3: Cross multiply
    173,507.60x = 259,872.60 × 142,403.60
  4. Step 4: Simplify right side
    173,507.60x = 37,006,793,781.36
  5. Step 5: Solve for x
    x = 37,006,793,781.36/173,507.60
  6. Step 6: Final answer
    x = 213,286.30

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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.