Home / 257,982.32-386,975.64-71,004.08

Finding the Fourth Proportional to 257,982.32, 386,975.64 and 71,004.08

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Solution

The fourth proportional to 257,982.32, 386,975.64 and 71,004.08 is: 106,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,982.32 : 386,975.64 = 71,004.08 : x
  2. Step 2: Convert to fraction form
    257,982.32/386,975.64 = 71,004.08/x
  3. Step 3: Cross multiply
    257,982.32x = 386,975.64 × 71,004.08
  4. Step 4: Simplify right side
    257,982.32x = 27,476,849,300.61
  5. Step 5: Solve for x
    x = 27,476,849,300.61/257,982.32
  6. Step 6: Final answer
    x = 106,506.71

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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.