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Finding the Fourth Proportional to 286,388.46, 427,489.04 and 265,573.08

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Solution

The fourth proportional to 286,388.46, 427,489.04 and 265,573.08 is: 396,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,388.46 : 427,489.04 = 265,573.08 : x
  2. Step 2: Convert to fraction form
    286,388.46/427,489.04 = 265,573.08/x
  3. Step 3: Cross multiply
    286,388.46x = 427,489.04 × 265,573.08
  4. Step 4: Simplify right side
    286,388.46x = 113,529,581,682.98
  5. Step 5: Solve for x
    x = 113,529,581,682.98/286,388.46
  6. Step 6: Final answer
    x = 396,418.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.