Home / 212,475.04-318,745.22-72,200.84

Finding the Fourth Proportional to 212,475.04, 318,745.22 and 72,200.84

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Solution

The fourth proportional to 212,475.04, 318,745.22 and 72,200.84 is: 108,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,475.04 : 318,745.22 = 72,200.84 : x
  2. Step 2: Convert to fraction form
    212,475.04/318,745.22 = 72,200.84/x
  3. Step 3: Cross multiply
    212,475.04x = 318,745.22 × 72,200.84
  4. Step 4: Simplify right side
    212,475.04x = 23,013,672,629.98
  5. Step 5: Solve for x
    x = 23,013,672,629.98/212,475.04
  6. Step 6: Final answer
    x = 108,312.36

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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.