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Finding the Fourth Proportional to 339,702.80, 509,554.20 and 192,246.80

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Solution

The fourth proportional to 339,702.80, 509,554.20 and 192,246.80 is: 288,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,702.80 : 509,554.20 = 192,246.80 : x
  2. Step 2: Convert to fraction form
    339,702.80/509,554.20 = 192,246.80/x
  3. Step 3: Cross multiply
    339,702.80x = 509,554.20 × 192,246.80
  4. Step 4: Simplify right side
    339,702.80x = 97,960,164,376.56
  5. Step 5: Solve for x
    x = 97,960,164,376.56/339,702.80
  6. Step 6: Final answer
    x = 288,370.20

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1.5x scale

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.