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Finding the Fourth Proportional to 254,370, 381,562.29 and 67,381.50

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Solution

The fourth proportional to 254,370, 381,562.29 and 67,381.50 is: 101,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,370 : 381,562.29 = 67,381.50 : x
  2. Step 2: Convert to fraction form
    254,370/381,562.29 = 67,381.50/x
  3. Step 3: Cross multiply
    254,370x = 381,562.29 × 67,381.50
  4. Step 4: Simplify right side
    254,370x = 25,710,239,443.64
  5. Step 5: Solve for x
    x = 25,710,239,443.64/254,370
  6. Step 6: Final answer
    x = 101,074.18

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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.