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Finding the Fourth Proportional to 197,133.60, 295,773.30 and 78,889.80

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Solution

The fourth proportional to 197,133.60, 295,773.30 and 78,889.80 is: 118,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,133.60 : 295,773.30 = 78,889.80 : x
  2. Step 2: Convert to fraction form
    197,133.60/295,773.30 = 78,889.80/x
  3. Step 3: Cross multiply
    197,133.60x = 295,773.30 × 78,889.80
  4. Step 4: Simplify right side
    197,133.60x = 23,333,496,482.34
  5. Step 5: Solve for x
    x = 23,333,496,482.34/197,133.60
  6. Step 6: Final answer
    x = 118,363.87

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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.