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Finding the Fourth Proportional to 286,476.34, 427,611.67 and 265,364.50

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Solution

The fourth proportional to 286,476.34, 427,611.67 and 265,364.50 is: 396,098.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,476.34 : 427,611.67 = 265,364.50 : x
  2. Step 2: Convert to fraction form
    286,476.34/427,611.67 = 265,364.50/x
  3. Step 3: Cross multiply
    286,476.34x = 427,611.67 × 265,364.50
  4. Step 4: Simplify right side
    286,476.34x = 113,472,955,676.89
  5. Step 5: Solve for x
    x = 113,472,955,676.89/286,476.34
  6. Step 6: Final answer
    x = 396,098.87

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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.