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Finding the Fourth Proportional to 346,857.80, 519,971.16 and 133,489.64

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Solution

The fourth proportional to 346,857.80, 519,971.16 and 133,489.64 is: 200,113.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,857.80 : 519,971.16 = 133,489.64 : x
  2. Step 2: Convert to fraction form
    346,857.80/519,971.16 = 133,489.64/x
  3. Step 3: Cross multiply
    346,857.80x = 519,971.16 × 133,489.64
  4. Step 4: Simplify right side
    346,857.80x = 69,410,762,958.78
  5. Step 5: Solve for x
    x = 69,410,762,958.78/346,857.80
  6. Step 6: Final answer
    x = 200,113.02

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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.