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Finding the Fourth Proportional to 313,249.30, 432,120.74 and 192,417.82

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Solution

The fourth proportional to 313,249.30, 432,120.74 and 192,417.82 is: 265,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,249.30 : 432,120.74 = 192,417.82 : x
  2. Step 2: Convert to fraction form
    313,249.30/432,120.74 = 192,417.82/x
  3. Step 3: Cross multiply
    313,249.30x = 432,120.74 × 192,417.82
  4. Step 4: Simplify right side
    313,249.30x = 83,147,730,767.59
  5. Step 5: Solve for x
    x = 83,147,730,767.59/313,249.30
  6. Step 6: Final answer
    x = 265,436.29

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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.