Home / 212,206.35-318,952.61-140,404.16

Finding the Fourth Proportional to 212,206.35, 318,952.61 and 140,404.16

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Solution

The fourth proportional to 212,206.35, 318,952.61 and 140,404.16 is: 211,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,206.35 : 318,952.61 = 140,404.16 : x
  2. Step 2: Convert to fraction form
    212,206.35/318,952.61 = 140,404.16/x
  3. Step 3: Cross multiply
    212,206.35x = 318,952.61 × 140,404.16
  4. Step 4: Simplify right side
    212,206.35x = 44,782,271,516.59
  5. Step 5: Solve for x
    x = 44,782,271,516.59/212,206.35
  6. Step 6: Final answer
    x = 211,031.73

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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.