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Finding the Fourth Proportional to 443,840.25, 665,928.06 and 266,470.92

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Solution

The fourth proportional to 443,840.25, 665,928.06 and 266,470.92 is: 399,807.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,840.25 : 665,928.06 = 266,470.92 : x
  2. Step 2: Convert to fraction form
    443,840.25/665,928.06 = 266,470.92/x
  3. Step 3: Cross multiply
    443,840.25x = 665,928.06 × 266,470.92
  4. Step 4: Simplify right side
    443,840.25x = 177,450,462,802.02
  5. Step 5: Solve for x
    x = 177,450,462,802.02/443,840.25
  6. Step 6: Final answer
    x = 399,807.05

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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.