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Finding the Fourth Proportional to 338,611.08, 507,239.88 and 203,601.22

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Solution

The fourth proportional to 338,611.08, 507,239.88 and 203,601.22 is: 304,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,611.08 : 507,239.88 = 203,601.22 : x
  2. Step 2: Convert to fraction form
    338,611.08/507,239.88 = 203,601.22/x
  3. Step 3: Cross multiply
    338,611.08x = 507,239.88 × 203,601.22
  4. Step 4: Simplify right side
    338,611.08x = 103,274,658,398.45
  5. Step 5: Solve for x
    x = 103,274,658,398.45/338,611.08
  6. Step 6: Final answer
    x = 304,994.92

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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.