Home / 330,905.40-496,358.10-238,284.60

Finding the Fourth Proportional to 330,905.40, 496,358.10 and 238,284.60

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Solution

The fourth proportional to 330,905.40, 496,358.10 and 238,284.60 is: 357,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,905.40 : 496,358.10 = 238,284.60 : x
  2. Step 2: Convert to fraction form
    330,905.40/496,358.10 = 238,284.60/x
  3. Step 3: Cross multiply
    330,905.40x = 496,358.10 × 238,284.60
  4. Step 4: Simplify right side
    330,905.40x = 118,274,491,315.26
  5. Step 5: Solve for x
    x = 118,274,491,315.26/330,905.40
  6. Step 6: Final answer
    x = 357,426.90

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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.