Home / 386,318.54-533,117.91-216,552.68

Finding the Fourth Proportional to 386,318.54, 533,117.91 and 216,552.68

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Solution

The fourth proportional to 386,318.54, 533,117.91 and 216,552.68 is: 298,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,318.54 : 533,117.91 = 216,552.68 : x
  2. Step 2: Convert to fraction form
    386,318.54/533,117.91 = 216,552.68/x
  3. Step 3: Cross multiply
    386,318.54x = 533,117.91 × 216,552.68
  4. Step 4: Simplify right side
    386,318.54x = 115,448,112,166.50
  5. Step 5: Solve for x
    x = 115,448,112,166.50/386,318.54
  6. Step 6: Final answer
    x = 298,841.76

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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.