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Finding the Fourth Proportional to 525,207.57, 787,745.75 and 146,156.73

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Solution

The fourth proportional to 525,207.57, 787,745.75 and 146,156.73 is: 219,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,207.57 : 787,745.75 = 146,156.73 : x
  2. Step 2: Convert to fraction form
    525,207.57/787,745.75 = 146,156.73/x
  3. Step 3: Cross multiply
    525,207.57x = 787,745.75 × 146,156.73
  4. Step 4: Simplify right side
    525,207.57x = 115,134,342,160.61
  5. Step 5: Solve for x
    x = 115,134,342,160.61/525,207.57
  6. Step 6: Final answer
    x = 219,216.84

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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.