Home / 345,346.41-518,074.98-145,696.21

Finding the Fourth Proportional to 345,346.41, 518,074.98 and 145,696.21

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Solution

The fourth proportional to 345,346.41, 518,074.98 and 145,696.21 is: 218,567.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,346.41 : 518,074.98 = 145,696.21 : x
  2. Step 2: Convert to fraction form
    345,346.41/518,074.98 = 145,696.21/x
  3. Step 3: Cross multiply
    345,346.41x = 518,074.98 × 145,696.21
  4. Step 4: Simplify right side
    345,346.41x = 75,481,561,081.83
  5. Step 5: Solve for x
    x = 75,481,561,081.83/345,346.41
  6. Step 6: Final answer
    x = 218,567.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.