Home / 250,729.80-375,830.88-82,206.40

Finding the Fourth Proportional to 250,729.80, 375,830.88 and 82,206.40

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Solution

The fourth proportional to 250,729.80, 375,830.88 and 82,206.40 is: 123,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,729.80 : 375,830.88 = 82,206.40 : x
  2. Step 2: Convert to fraction form
    250,729.80/375,830.88 = 82,206.40/x
  3. Step 3: Cross multiply
    250,729.80x = 375,830.88 × 82,206.40
  4. Step 4: Simplify right side
    250,729.80x = 30,895,703,653.63
  5. Step 5: Solve for x
    x = 30,895,703,653.63/250,729.80
  6. Step 6: Final answer
    x = 123,223.10

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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.