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Finding the Fourth Proportional to 251,718.77, 377,488.25 and 83,207.99

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Solution

The fourth proportional to 251,718.77, 377,488.25 and 83,207.99 is: 124,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,718.77 : 377,488.25 = 83,207.99 : x
  2. Step 2: Convert to fraction form
    251,718.77/377,488.25 = 83,207.99/x
  3. Step 3: Cross multiply
    251,718.77x = 377,488.25 × 83,207.99
  4. Step 4: Simplify right side
    251,718.77x = 31,410,039,370.83
  5. Step 5: Solve for x
    x = 31,410,039,370.83/251,718.77
  6. Step 6: Final answer
    x = 124,782.27

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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.