Home / 212,549.67-318,633.75-194,059.90

Finding the Fourth Proportional to 212,549.67, 318,633.75 and 194,059.90

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Solution

The fourth proportional to 212,549.67, 318,633.75 and 194,059.90 is: 290,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,549.67 : 318,633.75 = 194,059.90 : x
  2. Step 2: Convert to fraction form
    212,549.67/318,633.75 = 194,059.90/x
  3. Step 3: Cross multiply
    212,549.67x = 318,633.75 × 194,059.90
  4. Step 4: Simplify right side
    212,549.67x = 61,834,034,059.92
  5. Step 5: Solve for x
    x = 61,834,034,059.92/212,549.67
  6. Step 6: Final answer
    x = 290,915.69

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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.