Home / 212,245.48-318,368.22-87,449.32

Finding the Fourth Proportional to 212,245.48, 318,368.22 and 87,449.32

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Solution

The fourth proportional to 212,245.48, 318,368.22 and 87,449.32 is: 131,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,245.48 : 318,368.22 = 87,449.32 : x
  2. Step 2: Convert to fraction form
    212,245.48/318,368.22 = 87,449.32/x
  3. Step 3: Cross multiply
    212,245.48x = 318,368.22 × 87,449.32
  4. Step 4: Simplify right side
    212,245.48x = 27,841,084,348.61
  5. Step 5: Solve for x
    x = 27,841,084,348.61/212,245.48
  6. Step 6: Final answer
    x = 131,173.98

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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.