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Finding the Fourth Proportional to 253,650.12, 379,871.25 and 146,809.10

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Solution

The fourth proportional to 253,650.12, 379,871.25 and 146,809.10 is: 219,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,650.12 : 379,871.25 = 146,809.10 : x
  2. Step 2: Convert to fraction form
    253,650.12/379,871.25 = 146,809.10/x
  3. Step 3: Cross multiply
    253,650.12x = 379,871.25 × 146,809.10
  4. Step 4: Simplify right side
    253,650.12x = 55,768,554,429.02
  5. Step 5: Solve for x
    x = 55,768,554,429.02/253,650.12
  6. Step 6: Final answer
    x = 219,864.10

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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.