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Finding the Fourth Proportional to 339,880.40, 509,787.48 and 103,225.04

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Solution

The fourth proportional to 339,880.40, 509,787.48 and 103,225.04 is: 154,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,880.40 : 509,787.48 = 103,225.04 : x
  2. Step 2: Convert to fraction form
    339,880.40/509,787.48 = 103,225.04/x
  3. Step 3: Cross multiply
    339,880.40x = 509,787.48 × 103,225.04
  4. Step 4: Simplify right side
    339,880.40x = 52,622,833,014.50
  5. Step 5: Solve for x
    x = 52,622,833,014.50/339,880.40
  6. Step 6: Final answer
    x = 154,827.50

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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.