Home / 345,462.10-476,731.30-188,299.36

Finding the Fourth Proportional to 345,462.10, 476,731.30 and 188,299.36

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Solution

The fourth proportional to 345,462.10, 476,731.30 and 188,299.36 is: 259,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,462.10 : 476,731.30 = 188,299.36 : x
  2. Step 2: Convert to fraction form
    345,462.10/476,731.30 = 188,299.36/x
  3. Step 3: Cross multiply
    345,462.10x = 476,731.30 × 188,299.36
  4. Step 4: Simplify right side
    345,462.10x = 89,768,198,681.97
  5. Step 5: Solve for x
    x = 89,768,198,681.97/345,462.10
  6. Step 6: Final answer
    x = 259,849.63

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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.