Home / 352,454.12-486,639.32-216,670.04

Finding the Fourth Proportional to 352,454.12, 486,639.32 and 216,670.04

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Solution

The fourth proportional to 352,454.12, 486,639.32 and 216,670.04 is: 299,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,454.12 : 486,639.32 = 216,670.04 : x
  2. Step 2: Convert to fraction form
    352,454.12/486,639.32 = 216,670.04/x
  3. Step 3: Cross multiply
    352,454.12x = 486,639.32 × 216,670.04
  4. Step 4: Simplify right side
    352,454.12x = 105,440,157,413.43
  5. Step 5: Solve for x
    x = 105,440,157,413.43/352,454.12
  6. Step 6: Final answer
    x = 299,159.96

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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.