Home / 312,436.34-431,161.30-169,196.36

Finding the Fourth Proportional to 312,436.34, 431,161.30 and 169,196.36

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Solution

The fourth proportional to 312,436.34, 431,161.30 and 169,196.36 is: 233,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,436.34 : 431,161.30 = 169,196.36 : x
  2. Step 2: Convert to fraction form
    312,436.34/431,161.30 = 169,196.36/x
  3. Step 3: Cross multiply
    312,436.34x = 431,161.30 × 169,196.36
  4. Step 4: Simplify right side
    312,436.34x = 72,950,922,532.87
  5. Step 5: Solve for x
    x = 72,950,922,532.87/312,436.34
  6. Step 6: Final answer
    x = 233,490.52

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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.