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Finding the Fourth Proportional to 395,174.84, 545,354.50 and 242,183.48

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Solution

The fourth proportional to 395,174.84, 545,354.50 and 242,183.48 is: 334,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,174.84 : 545,354.50 = 242,183.48 : x
  2. Step 2: Convert to fraction form
    395,174.84/545,354.50 = 242,183.48/x
  3. Step 3: Cross multiply
    395,174.84x = 545,354.50 × 242,183.48
  4. Step 4: Simplify right side
    395,174.84x = 132,075,850,643.66
  5. Step 5: Solve for x
    x = 132,075,850,643.66/395,174.84
  6. Step 6: Final answer
    x = 334,221.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.