Home / 345,074.50-476,213.32-187,920.75

Finding the Fourth Proportional to 345,074.50, 476,213.32 and 187,920.75

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Solution

The fourth proportional to 345,074.50, 476,213.32 and 187,920.75 is: 259,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,074.50 : 476,213.32 = 187,920.75 : x
  2. Step 2: Convert to fraction form
    345,074.50/476,213.32 = 187,920.75/x
  3. Step 3: Cross multiply
    345,074.50x = 476,213.32 × 187,920.75
  4. Step 4: Simplify right side
    345,074.50x = 89,490,364,254.39
  5. Step 5: Solve for x
    x = 89,490,364,254.39/345,074.50
  6. Step 6: Final answer
    x = 259,336.36

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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.