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Finding the Fourth Proportional to 482,299.73, 665,525.68 and 278,416.33

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Solution

The fourth proportional to 482,299.73, 665,525.68 and 278,416.33 is: 384,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,299.73 : 665,525.68 = 278,416.33 : x
  2. Step 2: Convert to fraction form
    482,299.73/665,525.68 = 278,416.33/x
  3. Step 3: Cross multiply
    482,299.73x = 665,525.68 × 278,416.33
  4. Step 4: Simplify right side
    482,299.73x = 185,293,217,346.35
  5. Step 5: Solve for x
    x = 185,293,217,346.35/482,299.73
  6. Step 6: Final answer
    x = 384,186.86

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1.5x scale

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.