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Finding the Fourth Proportional to 339,885.36, 469,140.39 and 210,863.16

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Solution

The fourth proportional to 339,885.36, 469,140.39 and 210,863.16 is: 291,052.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,885.36 : 469,140.39 = 210,863.16 : x
  2. Step 2: Convert to fraction form
    339,885.36/469,140.39 = 210,863.16/x
  3. Step 3: Cross multiply
    339,885.36x = 469,140.39 × 210,863.16
  4. Step 4: Simplify right side
    339,885.36x = 98,924,425,119.03
  5. Step 5: Solve for x
    x = 98,924,425,119.03/339,885.36
  6. Step 6: Final answer
    x = 291,052.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.