Home / 308,725.18-425,632.35-222,612.10

Finding the Fourth Proportional to 308,725.18, 425,632.35 and 222,612.10

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Solution

The fourth proportional to 308,725.18, 425,632.35 and 222,612.10 is: 306,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,725.18 : 425,632.35 = 222,612.10 : x
  2. Step 2: Convert to fraction form
    308,725.18/425,632.35 = 222,612.10/x
  3. Step 3: Cross multiply
    308,725.18x = 425,632.35 × 222,612.10
  4. Step 4: Simplify right side
    308,725.18x = 94,750,911,261.44
  5. Step 5: Solve for x
    x = 94,750,911,261.44/308,725.18
  6. Step 6: Final answer
    x = 306,910.21

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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.