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Finding the Fourth Proportional to 352,577.50, 485,685.41 and 300,725.68

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Solution

The fourth proportional to 352,577.50, 485,685.41 and 300,725.68 is: 414,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,577.50 : 485,685.41 = 300,725.68 : x
  2. Step 2: Convert to fraction form
    352,577.50/485,685.41 = 300,725.68/x
  3. Step 3: Cross multiply
    352,577.50x = 485,685.41 × 300,725.68
  4. Step 4: Simplify right side
    352,577.50x = 146,058,075,188.33
  5. Step 5: Solve for x
    x = 146,058,075,188.33/352,577.50
  6. Step 6: Final answer
    x = 414,258.07

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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.