Home / 339,972.15-509,976.42-87,254.83

Finding the Fourth Proportional to 339,972.15, 509,976.42 and 87,254.83

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Solution

The fourth proportional to 339,972.15, 509,976.42 and 87,254.83 is: 130,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,972.15 : 509,976.42 = 87,254.83 : x
  2. Step 2: Convert to fraction form
    339,972.15/509,976.42 = 87,254.83/x
  3. Step 3: Cross multiply
    339,972.15x = 509,976.42 × 87,254.83
  4. Step 4: Simplify right side
    339,972.15x = 44,497,905,831.11
  5. Step 5: Solve for x
    x = 44,497,905,831.11/339,972.15
  6. Step 6: Final answer
    x = 130,886.91

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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.