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Finding the Fourth Proportional to 266,429.50, 399,841.51 and 126,188.54

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Solution

The fourth proportional to 266,429.50, 399,841.51 and 126,188.54 is: 189,376.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,429.50 : 399,841.51 = 126,188.54 : x
  2. Step 2: Convert to fraction form
    266,429.50/399,841.51 = 126,188.54/x
  3. Step 3: Cross multiply
    266,429.50x = 399,841.51 × 126,188.54
  4. Step 4: Simplify right side
    266,429.50x = 50,455,416,378.30
  5. Step 5: Solve for x
    x = 50,455,416,378.30/266,429.50
  6. Step 6: Final answer
    x = 189,376.24

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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.