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Finding the Fourth Proportional to 235,850.04, 325,470.22 and 128,420.04

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Solution

The fourth proportional to 235,850.04, 325,470.22 and 128,420.04 is: 177,218.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,850.04 : 325,470.22 = 128,420.04 : x
  2. Step 2: Convert to fraction form
    235,850.04/325,470.22 = 128,420.04/x
  3. Step 3: Cross multiply
    235,850.04x = 325,470.22 × 128,420.04
  4. Step 4: Simplify right side
    235,850.04x = 41,796,898,671.21
  5. Step 5: Solve for x
    x = 41,796,898,671.21/235,850.04
  6. Step 6: Final answer
    x = 177,218.11

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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.