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Finding the Fourth Proportional to 339,790.27, 509,687.04 and 103,135

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Solution

The fourth proportional to 339,790.27, 509,687.04 and 103,135 is: 154,703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,790.27 : 509,687.04 = 103,135 : x
  2. Step 2: Convert to fraction form
    339,790.27/509,687.04 = 103,135/x
  3. Step 3: Cross multiply
    339,790.27x = 509,687.04 × 103,135
  4. Step 4: Simplify right side
    339,790.27x = 52,566,572,870.40
  5. Step 5: Solve for x
    x = 52,566,572,870.40/339,790.27
  6. Step 6: Final answer
    x = 154,703.00

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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.