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Finding the Fourth Proportional to 339,571.08, 509,373.60 and 129,225.36

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Solution

The fourth proportional to 339,571.08, 509,373.60 and 129,225.36 is: 193,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,571.08 : 509,373.60 = 129,225.36 : x
  2. Step 2: Convert to fraction form
    339,571.08/509,373.60 = 129,225.36/x
  3. Step 3: Cross multiply
    339,571.08x = 509,373.60 × 129,225.36
  4. Step 4: Simplify right side
    339,571.08x = 65,823,986,834.50
  5. Step 5: Solve for x
    x = 65,823,986,834.50/339,571.08
  6. Step 6: Final answer
    x = 193,844.50

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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.