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Finding the Fourth Proportional to 365,420.30, 548,713.65 and 266,276.30

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Solution

The fourth proportional to 365,420.30, 548,713.65 and 266,276.30 is: 399,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,420.30 : 548,713.65 = 266,276.30 : x
  2. Step 2: Convert to fraction form
    365,420.30/548,713.65 = 266,276.30/x
  3. Step 3: Cross multiply
    365,420.30x = 548,713.65 × 266,276.30
  4. Step 4: Simplify right side
    365,420.30x = 146,109,440,481.50
  5. Step 5: Solve for x
    x = 146,109,440,481.50/365,420.30
  6. Step 6: Final answer
    x = 399,839.42

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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.