Home / 207,318.80-310,979.64-88,890.32

Finding the Fourth Proportional to 207,318.80, 310,979.64 and 88,890.32

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Solution

The fourth proportional to 207,318.80, 310,979.64 and 88,890.32 is: 133,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,318.80 : 310,979.64 = 88,890.32 : x
  2. Step 2: Convert to fraction form
    207,318.80/310,979.64 = 88,890.32/x
  3. Step 3: Cross multiply
    207,318.80x = 310,979.64 × 88,890.32
  4. Step 4: Simplify right side
    207,318.80x = 27,643,079,713.08
  5. Step 5: Solve for x
    x = 27,643,079,713.08/207,318.80
  6. Step 6: Final answer
    x = 133,336.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.