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Finding the Fourth Proportional to 525,009.30, 787,611.15 and 170,034.90

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Solution

The fourth proportional to 525,009.30, 787,611.15 and 170,034.90 is: 255,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,009.30 : 787,611.15 = 170,034.90 : x
  2. Step 2: Convert to fraction form
    525,009.30/787,611.15 = 170,034.90/x
  3. Step 3: Cross multiply
    525,009.30x = 787,611.15 × 170,034.90
  4. Step 4: Simplify right side
    525,009.30x = 133,921,383,129.14
  5. Step 5: Solve for x
    x = 133,921,383,129.14/525,009.30
  6. Step 6: Final answer
    x = 255,083.83

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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.