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Finding the Fourth Proportional to 251,724, 377,586 and 103,983.84

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Solution

The fourth proportional to 251,724, 377,586 and 103,983.84 is: 155,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,724 : 377,586 = 103,983.84 : x
  2. Step 2: Convert to fraction form
    251,724/377,586 = 103,983.84/x
  3. Step 3: Cross multiply
    251,724x = 377,586 × 103,983.84
  4. Step 4: Simplify right side
    251,724x = 39,262,842,210.24
  5. Step 5: Solve for x
    x = 39,262,842,210.24/251,724
  6. Step 6: Final answer
    x = 155,975.76

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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.