Home / 345,009.12-476,284.40-267,310.48

Finding the Fourth Proportional to 345,009.12, 476,284.40 and 267,310.48

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Solution

The fourth proportional to 345,009.12, 476,284.40 and 267,310.48 is: 369,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,009.12 : 476,284.40 = 267,310.48 : x
  2. Step 2: Convert to fraction form
    345,009.12/476,284.40 = 267,310.48/x
  3. Step 3: Cross multiply
    345,009.12x = 476,284.40 × 267,310.48
  4. Step 4: Simplify right side
    345,009.12x = 127,315,812,452.32
  5. Step 5: Solve for x
    x = 127,315,812,452.32/345,009.12
  6. Step 6: Final answer
    x = 369,021.58

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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.