Home / 436,931.28-655,391.43-238,515.75

Finding the Fourth Proportional to 436,931.28, 655,391.43 and 238,515.75

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Solution

The fourth proportional to 436,931.28, 655,391.43 and 238,515.75 is: 357,770.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,931.28 : 655,391.43 = 238,515.75 : x
  2. Step 2: Convert to fraction form
    436,931.28/655,391.43 = 238,515.75/x
  3. Step 3: Cross multiply
    436,931.28x = 655,391.43 × 238,515.75
  4. Step 4: Simplify right side
    436,931.28x = 156,321,178,470.02
  5. Step 5: Solve for x
    x = 156,321,178,470.02/436,931.28
  6. Step 6: Final answer
    x = 357,770.63

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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.