Home / 223,724.04-308,740.20-128,236.32

Finding the Fourth Proportional to 223,724.04, 308,740.20 and 128,236.32

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Solution

The fourth proportional to 223,724.04, 308,740.20 and 128,236.32 is: 176,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,724.04 : 308,740.20 = 128,236.32 : x
  2. Step 2: Convert to fraction form
    223,724.04/308,740.20 = 128,236.32/x
  3. Step 3: Cross multiply
    223,724.04x = 308,740.20 × 128,236.32
  4. Step 4: Simplify right side
    223,724.04x = 39,591,707,084.06
  5. Step 5: Solve for x
    x = 39,591,707,084.06/223,724.04
  6. Step 6: Final answer
    x = 176,966.71

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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.