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Finding the Fourth Proportional to 386,358.76, 579,206.62 and 175,921.64

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Solution

The fourth proportional to 386,358.76, 579,206.62 and 175,921.64 is: 263,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,358.76 : 579,206.62 = 175,921.64 : x
  2. Step 2: Convert to fraction form
    386,358.76/579,206.62 = 175,921.64/x
  3. Step 3: Cross multiply
    386,358.76x = 579,206.62 × 175,921.64
  4. Step 4: Simplify right side
    386,358.76x = 101,894,978,489.26
  5. Step 5: Solve for x
    x = 101,894,978,489.26/386,358.76
  6. Step 6: Final answer
    x = 263,731.51

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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.