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Finding the Fourth Proportional to 286,467.84, 427,599 and 265,356

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Solution

The fourth proportional to 286,467.84, 427,599 and 265,356 is: 396,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,467.84 : 427,599 = 265,356 : x
  2. Step 2: Convert to fraction form
    286,467.84/427,599 = 265,356/x
  3. Step 3: Cross multiply
    286,467.84x = 427,599 × 265,356
  4. Step 4: Simplify right side
    286,467.84x = 113,465,960,244
  5. Step 5: Solve for x
    x = 113,465,960,244/286,467.84
  6. Step 6: Final answer
    x = 396,086.21

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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.