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Finding the Fourth Proportional to 270,000.30, 405,000.45 and 266,063.70

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Solution

The fourth proportional to 270,000.30, 405,000.45 and 266,063.70 is: 399,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,000.30 : 405,000.45 = 266,063.70 : x
  2. Step 2: Convert to fraction form
    270,000.30/405,000.45 = 266,063.70/x
  3. Step 3: Cross multiply
    270,000.30x = 405,000.45 × 266,063.70
  4. Step 4: Simplify right side
    270,000.30x = 107,755,918,228.67
  5. Step 5: Solve for x
    x = 107,755,918,228.67/270,000.30
  6. Step 6: Final answer
    x = 399,095.55

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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.