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Finding the Fourth Proportional to 351,425.85, 484,605.21 and 300,606.82

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Solution

The fourth proportional to 351,425.85, 484,605.21 and 300,606.82 is: 414,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,425.85 : 484,605.21 = 300,606.82 : x
  2. Step 2: Convert to fraction form
    351,425.85/484,605.21 = 300,606.82/x
  3. Step 3: Cross multiply
    351,425.85x = 484,605.21 × 300,606.82
  4. Step 4: Simplify right side
    351,425.85x = 145,675,631,133.53
  5. Step 5: Solve for x
    x = 145,675,631,133.53/351,425.85
  6. Step 6: Final answer
    x = 414,527.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.