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Finding the Fourth Proportional to 366,909.35, 550,364.03 and 340,337.30

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Solution

The fourth proportional to 366,909.35, 550,364.03 and 340,337.30 is: 510,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,909.35 : 550,364.03 = 340,337.30 : x
  2. Step 2: Convert to fraction form
    366,909.35/550,364.03 = 340,337.30/x
  3. Step 3: Cross multiply
    366,909.35x = 550,364.03 × 340,337.30
  4. Step 4: Simplify right side
    366,909.35x = 187,309,407,987.32
  5. Step 5: Solve for x
    x = 187,309,407,987.32/366,909.35
  6. Step 6: Final answer
    x = 510,505.95

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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.