Home / 286,287.30-428,556.15-223,301.70

Finding the Fourth Proportional to 286,287.30, 428,556.15 and 223,301.70

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Solution

The fourth proportional to 286,287.30, 428,556.15 and 223,301.70 is: 334,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,287.30 : 428,556.15 = 223,301.70 : x
  2. Step 2: Convert to fraction form
    286,287.30/428,556.15 = 223,301.70/x
  3. Step 3: Cross multiply
    286,287.30x = 428,556.15 × 223,301.70
  4. Step 4: Simplify right side
    286,287.30x = 95,697,316,840.46
  5. Step 5: Solve for x
    x = 95,697,316,840.46/286,287.30
  6. Step 6: Final answer
    x = 334,270.21

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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.