Home / 313,267.86-431,982.75-185,918.85

Finding the Fourth Proportional to 313,267.86, 431,982.75 and 185,918.85

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Solution

The fourth proportional to 313,267.86, 431,982.75 and 185,918.85 is: 256,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,267.86 : 431,982.75 = 185,918.85 : x
  2. Step 2: Convert to fraction form
    313,267.86/431,982.75 = 185,918.85/x
  3. Step 3: Cross multiply
    313,267.86x = 431,982.75 × 185,918.85
  4. Step 4: Simplify right side
    313,267.86x = 80,313,736,099.84
  5. Step 5: Solve for x
    x = 80,313,736,099.84/313,267.86
  6. Step 6: Final answer
    x = 256,374.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.