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Finding the Fourth Proportional to 339,912.32, 509,868.32 and 103,254.08

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Solution

The fourth proportional to 339,912.32, 509,868.32 and 103,254.08 is: 154,881.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,912.32 : 509,868.32 = 103,254.08 : x
  2. Step 2: Convert to fraction form
    339,912.32/509,868.32 = 103,254.08/x
  3. Step 3: Cross multiply
    339,912.32x = 509,868.32 × 103,254.08
  4. Step 4: Simplify right side
    339,912.32x = 52,645,984,302.75
  5. Step 5: Solve for x
    x = 52,645,984,302.75/339,912.32
  6. Step 6: Final answer
    x = 154,881.07

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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.