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Finding the Fourth Proportional to 340,537.77, 510,835.95 and 87,815.97

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Solution

The fourth proportional to 340,537.77, 510,835.95 and 87,815.97 is: 131,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,537.77 : 510,835.95 = 87,815.97 : x
  2. Step 2: Convert to fraction form
    340,537.77/510,835.95 = 87,815.97/x
  3. Step 3: Cross multiply
    340,537.77x = 510,835.95 × 87,815.97
  4. Step 4: Simplify right side
    340,537.77x = 44,859,554,460.12
  5. Step 5: Solve for x
    x = 44,859,554,460.12/340,537.77
  6. Step 6: Final answer
    x = 131,731.51

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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.