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Finding the Fourth Proportional to 346,853.78, 519,965.16 and 133,485.62

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Solution

The fourth proportional to 346,853.78, 519,965.16 and 133,485.62 is: 200,107.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,853.78 : 519,965.16 = 133,485.62 : x
  2. Step 2: Convert to fraction form
    346,853.78/519,965.16 = 133,485.62/x
  3. Step 3: Cross multiply
    346,853.78x = 519,965.16 × 133,485.62
  4. Step 4: Simplify right side
    346,853.78x = 69,407,871,761.00
  5. Step 5: Solve for x
    x = 69,407,871,761.00/346,853.78
  6. Step 6: Final answer
    x = 200,107.01

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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.