Home / 212,076.30-318,114.45-194,105.10

Finding the Fourth Proportional to 212,076.30, 318,114.45 and 194,105.10

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Solution

The fourth proportional to 212,076.30, 318,114.45 and 194,105.10 is: 291,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,076.30 : 318,114.45 = 194,105.10 : x
  2. Step 2: Convert to fraction form
    212,076.30/318,114.45 = 194,105.10/x
  3. Step 3: Cross multiply
    212,076.30x = 318,114.45 × 194,105.10
  4. Step 4: Simplify right side
    212,076.30x = 61,747,637,128.70
  5. Step 5: Solve for x
    x = 61,747,637,128.70/212,076.30
  6. Step 6: Final answer
    x = 291,157.65

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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.