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Finding the Fourth Proportional to 266,068.20, 399,102.30 and 166,859.40

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Solution

The fourth proportional to 266,068.20, 399,102.30 and 166,859.40 is: 250,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,068.20 : 399,102.30 = 166,859.40 : x
  2. Step 2: Convert to fraction form
    266,068.20/399,102.30 = 166,859.40/x
  3. Step 3: Cross multiply
    266,068.20x = 399,102.30 × 166,859.40
  4. Step 4: Simplify right side
    266,068.20x = 66,593,970,316.62
  5. Step 5: Solve for x
    x = 66,593,970,316.62/266,068.20
  6. Step 6: Final answer
    x = 250,289.10

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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.