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Finding the Fourth Proportional to 335,999.70, 503,999.55 and 217,026.90

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Solution

The fourth proportional to 335,999.70, 503,999.55 and 217,026.90 is: 325,540.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,999.70 : 503,999.55 = 217,026.90 : x
  2. Step 2: Convert to fraction form
    335,999.70/503,999.55 = 217,026.90/x
  3. Step 3: Cross multiply
    335,999.70x = 503,999.55 × 217,026.90
  4. Step 4: Simplify right side
    335,999.70x = 109,381,459,937.90
  5. Step 5: Solve for x
    x = 109,381,459,937.90/335,999.70
  6. Step 6: Final answer
    x = 325,540.35

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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.