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Finding the Fourth Proportional to 200,840.21, 301,259.01 and 51,079.21

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Solution

The fourth proportional to 200,840.21, 301,259.01 and 51,079.21 is: 76,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,840.21 : 301,259.01 = 51,079.21 : x
  2. Step 2: Convert to fraction form
    200,840.21/301,259.01 = 51,079.21/x
  3. Step 3: Cross multiply
    200,840.21x = 301,259.01 × 51,079.21
  4. Step 4: Simplify right side
    200,840.21x = 15,388,071,674.58
  5. Step 5: Solve for x
    x = 15,388,071,674.58/200,840.21
  6. Step 6: Final answer
    x = 76,618.48

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1.5x scale

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.