Home / 212,477.60-318,716.53-203,252.72

Finding the Fourth Proportional to 212,477.60, 318,716.53 and 203,252.72

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Solution

The fourth proportional to 212,477.60, 318,716.53 and 203,252.72 is: 304,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,477.60 : 318,716.53 = 203,252.72 : x
  2. Step 2: Convert to fraction form
    212,477.60/318,716.53 = 203,252.72/x
  3. Step 3: Cross multiply
    212,477.60x = 318,716.53 × 203,252.72
  4. Step 4: Simplify right side
    212,477.60x = 64,780,001,631.46
  5. Step 5: Solve for x
    x = 64,780,001,631.46/212,477.60
  6. Step 6: Final answer
    x = 304,879.20

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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.