Home / 485,171.22-727,897.18-200,809.20

Finding the Fourth Proportional to 485,171.22, 727,897.18 and 200,809.20

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Solution

The fourth proportional to 485,171.22, 727,897.18 and 200,809.20 is: 301,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,171.22 : 727,897.18 = 200,809.20 : x
  2. Step 2: Convert to fraction form
    485,171.22/727,897.18 = 200,809.20/x
  3. Step 3: Cross multiply
    485,171.22x = 727,897.18 × 200,809.20
  4. Step 4: Simplify right side
    485,171.22x = 146,168,450,398.06
  5. Step 5: Solve for x
    x = 146,168,450,398.06/485,171.22
  6. Step 6: Final answer
    x = 301,271.89

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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.