Home / 325,815.12-488,569.32-126,228.96

Finding the Fourth Proportional to 325,815.12, 488,569.32 and 126,228.96

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Solution

The fourth proportional to 325,815.12, 488,569.32 and 126,228.96 is: 189,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,815.12 : 488,569.32 = 126,228.96 : x
  2. Step 2: Convert to fraction form
    325,815.12/488,569.32 = 126,228.96/x
  3. Step 3: Cross multiply
    325,815.12x = 488,569.32 × 126,228.96
  4. Step 4: Simplify right side
    325,815.12x = 61,671,597,151.51
  5. Step 5: Solve for x
    x = 61,671,597,151.51/325,815.12
  6. Step 6: Final answer
    x = 189,284.02

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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.