Home / 485,146.16-727,859.64-200,784.20

Finding the Fourth Proportional to 485,146.16, 727,859.64 and 200,784.20

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Solution

The fourth proportional to 485,146.16, 727,859.64 and 200,784.20 is: 301,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,146.16 : 727,859.64 = 200,784.20 : x
  2. Step 2: Convert to fraction form
    485,146.16/727,859.64 = 200,784.20/x
  3. Step 3: Cross multiply
    485,146.16x = 727,859.64 × 200,784.20
  4. Step 4: Simplify right side
    485,146.16x = 146,142,715,529.69
  5. Step 5: Solve for x
    x = 146,142,715,529.69/485,146.16
  6. Step 6: Final answer
    x = 301,234.41

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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.