Home / 212,018.96-318,026.82-54,247.16

Finding the Fourth Proportional to 212,018.96, 318,026.82 and 54,247.16

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Solution

The fourth proportional to 212,018.96, 318,026.82 and 54,247.16 is: 81,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,018.96 : 318,026.82 = 54,247.16 : x
  2. Step 2: Convert to fraction form
    212,018.96/318,026.82 = 54,247.16/x
  3. Step 3: Cross multiply
    212,018.96x = 318,026.82 × 54,247.16
  4. Step 4: Simplify right side
    212,018.96x = 17,252,051,788.83
  5. Step 5: Solve for x
    x = 17,252,051,788.83/212,018.96
  6. Step 6: Final answer
    x = 81,370.33

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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.