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Finding the Fourth Proportional to 525,119.20, 787,679.56 and 146,039.96

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Solution

The fourth proportional to 525,119.20, 787,679.56 and 146,039.96 is: 219,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,119.20 : 787,679.56 = 146,039.96 : x
  2. Step 2: Convert to fraction form
    525,119.20/787,679.56 = 146,039.96/x
  3. Step 3: Cross multiply
    525,119.20x = 787,679.56 × 146,039.96
  4. Step 4: Simplify right side
    525,119.20x = 115,032,693,997.70
  5. Step 5: Solve for x
    x = 115,032,693,997.70/525,119.20
  6. Step 6: Final answer
    x = 219,060.15

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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.