Home / 308,720.18-425,625.45-222,607.10

Finding the Fourth Proportional to 308,720.18, 425,625.45 and 222,607.10

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Solution

The fourth proportional to 308,720.18, 425,625.45 and 222,607.10 is: 306,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,720.18 : 425,625.45 = 222,607.10 : x
  2. Step 2: Convert to fraction form
    308,720.18/425,625.45 = 222,607.10/x
  3. Step 3: Cross multiply
    308,720.18x = 425,625.45 × 222,607.10
  4. Step 4: Simplify right side
    308,720.18x = 94,747,247,110.70
  5. Step 5: Solve for x
    x = 94,747,247,110.70/308,720.18
  6. Step 6: Final answer
    x = 306,903.32

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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.