Home / 212,936.80-318,740.72-156,840.24

Finding the Fourth Proportional to 212,936.80, 318,740.72 and 156,840.24

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Solution

The fourth proportional to 212,936.80, 318,740.72 and 156,840.24 is: 234,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,936.80 : 318,740.72 = 156,840.24 : x
  2. Step 2: Convert to fraction form
    212,936.80/318,740.72 = 156,840.24/x
  3. Step 3: Cross multiply
    212,936.80x = 318,740.72 × 156,840.24
  4. Step 4: Simplify right side
    212,936.80x = 49,991,371,022.57
  5. Step 5: Solve for x
    x = 49,991,371,022.57/212,936.80
  6. Step 6: Final answer
    x = 234,770.93

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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.