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Finding the Fourth Proportional to 357,694, 535,724.52 and 170,836.72

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Solution

The fourth proportional to 357,694, 535,724.52 and 170,836.72 is: 255,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,694 : 535,724.52 = 170,836.72 : x
  2. Step 2: Convert to fraction form
    357,694/535,724.52 = 170,836.72/x
  3. Step 3: Cross multiply
    357,694x = 535,724.52 × 170,836.72
  4. Step 4: Simplify right side
    357,694x = 91,521,419,820.37
  5. Step 5: Solve for x
    x = 91,521,419,820.37/357,694
  6. Step 6: Final answer
    x = 255,865.12

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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.