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Finding the Fourth Proportional to 335,219.40, 502,440.30 and 135,408.60

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Solution

The fourth proportional to 335,219.40, 502,440.30 and 135,408.60 is: 202,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,219.40 : 502,440.30 = 135,408.60 : x
  2. Step 2: Convert to fraction form
    335,219.40/502,440.30 = 135,408.60/x
  3. Step 3: Cross multiply
    335,219.40x = 502,440.30 × 135,408.60
  4. Step 4: Simplify right side
    335,219.40x = 68,034,737,606.58
  5. Step 5: Solve for x
    x = 68,034,737,606.58/335,219.40
  6. Step 6: Final answer
    x = 202,955.85

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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.