Home / 212,246.48-318,369.72-87,450.32

Finding the Fourth Proportional to 212,246.48, 318,369.72 and 87,450.32

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Solution

The fourth proportional to 212,246.48, 318,369.72 and 87,450.32 is: 131,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,246.48 : 318,369.72 = 87,450.32 : x
  2. Step 2: Convert to fraction form
    212,246.48/318,369.72 = 87,450.32/x
  3. Step 3: Cross multiply
    212,246.48x = 318,369.72 × 87,450.32
  4. Step 4: Simplify right side
    212,246.48x = 27,841,533,892.31
  5. Step 5: Solve for x
    x = 27,841,533,892.31/212,246.48
  6. Step 6: Final answer
    x = 131,175.48

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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.