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Finding the Fourth Proportional to 545,852.20, 818,665.52 and 146,398

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Solution

The fourth proportional to 545,852.20, 818,665.52 and 146,398 is: 219,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,852.20 : 818,665.52 = 146,398 : x
  2. Step 2: Convert to fraction form
    545,852.20/818,665.52 = 146,398/x
  3. Step 3: Cross multiply
    545,852.20x = 818,665.52 × 146,398
  4. Step 4: Simplify right side
    545,852.20x = 119,850,994,796.96
  5. Step 5: Solve for x
    x = 119,850,994,796.96/545,852.20
  6. Step 6: Final answer
    x = 219,566.75

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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.