Home / 401,318.16-553,816.62-220,037.76

Finding the Fourth Proportional to 401,318.16, 553,816.62 and 220,037.76

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Solution

The fourth proportional to 401,318.16, 553,816.62 and 220,037.76 is: 303,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,318.16 : 553,816.62 = 220,037.76 : x
  2. Step 2: Convert to fraction form
    401,318.16/553,816.62 = 220,037.76/x
  3. Step 3: Cross multiply
    401,318.16x = 553,816.62 × 220,037.76
  4. Step 4: Simplify right side
    401,318.16x = 121,860,568,515.57
  5. Step 5: Solve for x
    x = 121,860,568,515.57/401,318.16
  6. Step 6: Final answer
    x = 303,650.77

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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.