Home / 345,360.06-476,631-202,111.56

Finding the Fourth Proportional to 345,360.06, 476,631 and 202,111.56

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Solution

The fourth proportional to 345,360.06, 476,631 and 202,111.56 is: 278,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,360.06 : 476,631 = 202,111.56 : x
  2. Step 2: Convert to fraction form
    345,360.06/476,631 = 202,111.56/x
  3. Step 3: Cross multiply
    345,360.06x = 476,631 × 202,111.56
  4. Step 4: Simplify right side
    345,360.06x = 96,332,634,954.36
  5. Step 5: Solve for x
    x = 96,332,634,954.36/345,360.06
  6. Step 6: Final answer
    x = 278,933.92

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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.