Home / 257,211.22-355,074.56-171,313.15

Finding the Fourth Proportional to 257,211.22, 355,074.56 and 171,313.15

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Solution

The fourth proportional to 257,211.22, 355,074.56 and 171,313.15 is: 236,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,211.22 : 355,074.56 = 171,313.15 : x
  2. Step 2: Convert to fraction form
    257,211.22/355,074.56 = 171,313.15/x
  3. Step 3: Cross multiply
    257,211.22x = 355,074.56 × 171,313.15
  4. Step 4: Simplify right side
    257,211.22x = 60,828,940,501.90
  5. Step 5: Solve for x
    x = 60,828,940,501.90/257,211.22
  6. Step 6: Final answer
    x = 236,494.12

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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.