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Finding the Fourth Proportional to 194,997.20, 292,495.80 and 145,230.80

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Solution

The fourth proportional to 194,997.20, 292,495.80 and 145,230.80 is: 217,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,997.20 : 292,495.80 = 145,230.80 : x
  2. Step 2: Convert to fraction form
    194,997.20/292,495.80 = 145,230.80/x
  3. Step 3: Cross multiply
    194,997.20x = 292,495.80 × 145,230.80
  4. Step 4: Simplify right side
    194,997.20x = 42,479,399,030.64
  5. Step 5: Solve for x
    x = 42,479,399,030.64/194,997.20
  6. Step 6: Final answer
    x = 217,846.20

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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.