Home / 287,175.27-430,827.15-87,511.29

Finding the Fourth Proportional to 287,175.27, 430,827.15 and 87,511.29

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Solution

The fourth proportional to 287,175.27, 430,827.15 and 87,511.29 is: 131,286.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,175.27 : 430,827.15 = 87,511.29 : x
  2. Step 2: Convert to fraction form
    287,175.27/430,827.15 = 87,511.29/x
  3. Step 3: Cross multiply
    287,175.27x = 430,827.15 × 87,511.29
  4. Step 4: Simplify right side
    287,175.27x = 37,702,238,376.09
  5. Step 5: Solve for x
    x = 37,702,238,376.09/287,175.27
  6. Step 6: Final answer
    x = 131,286.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.