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Finding the Fourth Proportional to 245,423.93, 338,852.77 and 187,961.72

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Solution

The fourth proportional to 245,423.93, 338,852.77 and 187,961.72 is: 259,515.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.93 : 338,852.77 = 187,961.72 : x
  2. Step 2: Convert to fraction form
    245,423.93/338,852.77 = 187,961.72/x
  3. Step 3: Cross multiply
    245,423.93x = 338,852.77 × 187,961.72
  4. Step 4: Simplify right side
    245,423.93x = 63,691,347,311.80
  5. Step 5: Solve for x
    x = 63,691,347,311.80/245,423.93
  6. Step 6: Final answer
    x = 259,515.64

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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.