Home / 339,787.77-509,683.28-103,132.50

Finding the Fourth Proportional to 339,787.77, 509,683.28 and 103,132.50

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Solution

The fourth proportional to 339,787.77, 509,683.28 and 103,132.50 is: 154,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,787.77 : 509,683.28 = 103,132.50 : x
  2. Step 2: Convert to fraction form
    339,787.77/509,683.28 = 103,132.50/x
  3. Step 3: Cross multiply
    339,787.77x = 509,683.28 × 103,132.50
  4. Step 4: Simplify right side
    339,787.77x = 52,564,910,874.60
  5. Step 5: Solve for x
    x = 52,564,910,874.60/339,787.77
  6. Step 6: Final answer
    x = 154,699.24

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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.