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Finding the Fourth Proportional to 205,018.67, 307,549.88 and 86,701.97

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Solution

The fourth proportional to 205,018.67, 307,549.88 and 86,701.97 is: 130,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,018.67 : 307,549.88 = 86,701.97 : x
  2. Step 2: Convert to fraction form
    205,018.67/307,549.88 = 86,701.97/x
  3. Step 3: Cross multiply
    205,018.67x = 307,549.88 × 86,701.97
  4. Step 4: Simplify right side
    205,018.67x = 26,665,178,498.00
  5. Step 5: Solve for x
    x = 26,665,178,498.00/205,018.67
  6. Step 6: Final answer
    x = 130,062.20

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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.