Home / 212,209.50-318,246.62-70,028.28

Finding the Fourth Proportional to 212,209.50, 318,246.62 and 70,028.28

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Solution

The fourth proportional to 212,209.50, 318,246.62 and 70,028.28 is: 105,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,209.50 : 318,246.62 = 70,028.28 : x
  2. Step 2: Convert to fraction form
    212,209.50/318,246.62 = 70,028.28/x
  3. Step 3: Cross multiply
    212,209.50x = 318,246.62 × 70,028.28
  4. Step 4: Simplify right side
    212,209.50x = 22,286,263,414.41
  5. Step 5: Solve for x
    x = 22,286,263,414.41/212,209.50
  6. Step 6: Final answer
    x = 105,020.10

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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.