Home / 212,984.40-320,132.70-201,174.60

Finding the Fourth Proportional to 212,984.40, 320,132.70 and 201,174.60

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Solution

The fourth proportional to 212,984.40, 320,132.70 and 201,174.60 is: 302,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,984.40 : 320,132.70 = 201,174.60 : x
  2. Step 2: Convert to fraction form
    212,984.40/320,132.70 = 201,174.60/x
  3. Step 3: Cross multiply
    212,984.40x = 320,132.70 × 201,174.60
  4. Step 4: Simplify right side
    212,984.40x = 64,402,567,869.42
  5. Step 5: Solve for x
    x = 64,402,567,869.42/212,984.40
  6. Step 6: Final answer
    x = 302,381.62

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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.