Home / 212,401.42-318,526.23-70,220.44

Finding the Fourth Proportional to 212,401.42, 318,526.23 and 70,220.44

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Solution

The fourth proportional to 212,401.42, 318,526.23 and 70,220.44 is: 105,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,401.42 : 318,526.23 = 70,220.44 : x
  2. Step 2: Convert to fraction form
    212,401.42/318,526.23 = 70,220.44/x
  3. Step 3: Cross multiply
    212,401.42x = 318,526.23 × 70,220.44
  4. Step 4: Simplify right side
    212,401.42x = 22,367,052,022.14
  5. Step 5: Solve for x
    x = 22,367,052,022.14/212,401.42
  6. Step 6: Final answer
    x = 105,305.57

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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.