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Finding the Fourth Proportional to 335,999.90, 503,999.85 and 203,030.30

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Solution

The fourth proportional to 335,999.90, 503,999.85 and 203,030.30 is: 304,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,999.90 : 503,999.85 = 203,030.30 : x
  2. Step 2: Convert to fraction form
    335,999.90/503,999.85 = 203,030.30/x
  3. Step 3: Cross multiply
    335,999.90x = 503,999.85 × 203,030.30
  4. Step 4: Simplify right side
    335,999.90x = 102,327,240,745.46
  5. Step 5: Solve for x
    x = 102,327,240,745.46/335,999.90
  6. Step 6: Final answer
    x = 304,545.45

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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.