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Finding the Fourth Proportional to 345,995.34, 477,292.26 and 300,571.35

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Solution

The fourth proportional to 345,995.34, 477,292.26 and 300,571.35 is: 414,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,995.34 : 477,292.26 = 300,571.35 : x
  2. Step 2: Convert to fraction form
    345,995.34/477,292.26 = 300,571.35/x
  3. Step 3: Cross multiply
    345,995.34x = 477,292.26 × 300,571.35
  4. Step 4: Simplify right side
    345,995.34x = 143,460,376,546.29
  5. Step 5: Solve for x
    x = 143,460,376,546.29/345,995.34
  6. Step 6: Final answer
    x = 414,630.96

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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.