Home / 212,325.48-318,138.30-123,329.16

Finding the Fourth Proportional to 212,325.48, 318,138.30 and 123,329.16

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Solution

The fourth proportional to 212,325.48, 318,138.30 and 123,329.16 is: 184,790.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,325.48 : 318,138.30 = 123,329.16 : x
  2. Step 2: Convert to fraction form
    212,325.48/318,138.30 = 123,329.16/x
  3. Step 3: Cross multiply
    212,325.48x = 318,138.30 × 123,329.16
  4. Step 4: Simplify right side
    212,325.48x = 39,235,729,302.83
  5. Step 5: Solve for x
    x = 39,235,729,302.83/212,325.48
  6. Step 6: Final answer
    x = 184,790.49

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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.