Home / 286,033.32-428,989.23-108,478.08

Finding the Fourth Proportional to 286,033.32, 428,989.23 and 108,478.08

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Solution

The fourth proportional to 286,033.32, 428,989.23 and 108,478.08 is: 162,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,033.32 : 428,989.23 = 108,478.08 : x
  2. Step 2: Convert to fraction form
    286,033.32/428,989.23 = 108,478.08/x
  3. Step 3: Cross multiply
    286,033.32x = 428,989.23 × 108,478.08
  4. Step 4: Simplify right side
    286,033.32x = 46,535,928,011.08
  5. Step 5: Solve for x
    x = 46,535,928,011.08/286,033.32
  6. Step 6: Final answer
    x = 162,694.08

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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.