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Finding the Fourth Proportional to 352,625.40, 486,632.88 and 191,490.21

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Solution

The fourth proportional to 352,625.40, 486,632.88 and 191,490.21 is: 264,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,625.40 : 486,632.88 = 191,490.21 : x
  2. Step 2: Convert to fraction form
    352,625.40/486,632.88 = 191,490.21/x
  3. Step 3: Cross multiply
    352,625.40x = 486,632.88 × 191,490.21
  4. Step 4: Simplify right side
    352,625.40x = 93,185,432,384.10
  5. Step 5: Solve for x
    x = 93,185,432,384.10/352,625.40
  6. Step 6: Final answer
    x = 264,261.83

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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.