Home / 212,353.48-318,180.12-123,357.16

Finding the Fourth Proportional to 212,353.48, 318,180.12 and 123,357.16

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Solution

The fourth proportional to 212,353.48, 318,180.12 and 123,357.16 is: 184,832.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,353.48 : 318,180.12 = 123,357.16 : x
  2. Step 2: Convert to fraction form
    212,353.48/318,180.12 = 123,357.16/x
  3. Step 3: Cross multiply
    212,353.48x = 318,180.12 × 123,357.16
  4. Step 4: Simplify right side
    212,353.48x = 39,249,795,971.66
  5. Step 5: Solve for x
    x = 39,249,795,971.66/212,353.48
  6. Step 6: Final answer
    x = 184,832.37

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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.