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Finding the Fourth Proportional to 352,384.63, 486,374.22 and 209,227.25

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Solution

The fourth proportional to 352,384.63, 486,374.22 and 209,227.25 is: 288,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,384.63 : 486,374.22 = 209,227.25 : x
  2. Step 2: Convert to fraction form
    352,384.63/486,374.22 = 209,227.25/x
  3. Step 3: Cross multiply
    352,384.63x = 486,374.22 × 209,227.25
  4. Step 4: Simplify right side
    352,384.63x = 101,762,741,737.43
  5. Step 5: Solve for x
    x = 101,762,741,737.43/352,384.63
  6. Step 6: Final answer
    x = 288,783.15

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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.