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Finding the Fourth Proportional to 339,502.06, 509,253.27 and 126,242.26

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Solution

The fourth proportional to 339,502.06, 509,253.27 and 126,242.26 is: 189,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,502.06 : 509,253.27 = 126,242.26 : x
  2. Step 2: Convert to fraction form
    339,502.06/509,253.27 = 126,242.26/x
  3. Step 3: Cross multiply
    339,502.06x = 509,253.27 × 126,242.26
  4. Step 4: Simplify right side
    339,502.06x = 64,289,282,917.47
  5. Step 5: Solve for x
    x = 64,289,282,917.47/339,502.06
  6. Step 6: Final answer
    x = 189,363.46

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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.