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Finding the Fourth Proportional to 308,625.60, 425,906.40 and 181,303.20

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Solution

The fourth proportional to 308,625.60, 425,906.40 and 181,303.20 is: 250,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,625.60 : 425,906.40 = 181,303.20 : x
  2. Step 2: Convert to fraction form
    308,625.60/425,906.40 = 181,303.20/x
  3. Step 3: Cross multiply
    308,625.60x = 425,906.40 × 181,303.20
  4. Step 4: Simplify right side
    308,625.60x = 77,218,193,220.48
  5. Step 5: Solve for x
    x = 77,218,193,220.48/308,625.60
  6. Step 6: Final answer
    x = 250,200.22

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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.