Home / 212,816.42-318,436.10-170,568.36

Finding the Fourth Proportional to 212,816.42, 318,436.10 and 170,568.36

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Solution

The fourth proportional to 212,816.42, 318,436.10 and 170,568.36 is: 255,220.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,816.42 : 318,436.10 = 170,568.36 : x
  2. Step 2: Convert to fraction form
    212,816.42/318,436.10 = 170,568.36/x
  3. Step 3: Cross multiply
    212,816.42x = 318,436.10 × 170,568.36
  4. Step 4: Simplify right side
    212,816.42x = 54,315,123,341.80
  5. Step 5: Solve for x
    x = 54,315,123,341.80/212,816.42
  6. Step 6: Final answer
    x = 255,220.55

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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.