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Finding the Fourth Proportional to 228,103.40, 341,507.10 and 215,690.60

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Solution

The fourth proportional to 228,103.40, 341,507.10 and 215,690.60 is: 322,923.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,103.40 : 341,507.10 = 215,690.60 : x
  2. Step 2: Convert to fraction form
    228,103.40/341,507.10 = 215,690.60/x
  3. Step 3: Cross multiply
    228,103.40x = 341,507.10 × 215,690.60
  4. Step 4: Simplify right side
    228,103.40x = 73,659,871,303.26
  5. Step 5: Solve for x
    x = 73,659,871,303.26/228,103.40
  6. Step 6: Final answer
    x = 322,923.16

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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.