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Finding the Fourth Proportional to 340,584.30, 509,892.30 and 330,742.80

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Solution

The fourth proportional to 340,584.30, 509,892.30 and 330,742.80 is: 495,158.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,584.30 : 509,892.30 = 330,742.80 : x
  2. Step 2: Convert to fraction form
    340,584.30/509,892.30 = 330,742.80/x
  3. Step 3: Cross multiply
    340,584.30x = 509,892.30 × 330,742.80
  4. Step 4: Simplify right side
    340,584.30x = 168,643,207,000.44
  5. Step 5: Solve for x
    x = 168,643,207,000.44/340,584.30
  6. Step 6: Final answer
    x = 495,158.49

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1.5x scale

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.