Home / 315,437.26-435,304.20-172,197.40

Finding the Fourth Proportional to 315,437.26, 435,304.20 and 172,197.40

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Solution

The fourth proportional to 315,437.26, 435,304.20 and 172,197.40 is: 237,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,437.26 : 435,304.20 = 172,197.40 : x
  2. Step 2: Convert to fraction form
    315,437.26/435,304.20 = 172,197.40/x
  3. Step 3: Cross multiply
    315,437.26x = 435,304.20 × 172,197.40
  4. Step 4: Simplify right side
    315,437.26x = 74,958,251,449.08
  5. Step 5: Solve for x
    x = 74,958,251,449.08/315,437.26
  6. Step 6: Final answer
    x = 237,632.84

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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.