Home / 352,417.16-486,336.15-191,272.21

Finding the Fourth Proportional to 352,417.16, 486,336.15 and 191,272.21

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Solution

The fourth proportional to 352,417.16, 486,336.15 and 191,272.21 is: 263,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,417.16 : 486,336.15 = 191,272.21 : x
  2. Step 2: Convert to fraction form
    352,417.16/486,336.15 = 191,272.21/x
  3. Step 3: Cross multiply
    352,417.16x = 486,336.15 × 191,272.21
  4. Step 4: Simplify right side
    352,417.16x = 93,022,588,997.55
  5. Step 5: Solve for x
    x = 93,022,588,997.55/352,417.16
  6. Step 6: Final answer
    x = 263,955.90

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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.