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Finding the Fourth Proportional to 338,258.21, 507,554.01 and 158,355.81

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Solution

The fourth proportional to 338,258.21, 507,554.01 and 158,355.81 is: 237,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,258.21 : 507,554.01 = 158,355.81 : x
  2. Step 2: Convert to fraction form
    338,258.21/507,554.01 = 158,355.81/x
  3. Step 3: Cross multiply
    338,258.21x = 507,554.01 × 158,355.81
  4. Step 4: Simplify right side
    338,258.21x = 80,374,126,372.30
  5. Step 5: Solve for x
    x = 80,374,126,372.30/338,258.21
  6. Step 6: Final answer
    x = 237,611.76

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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.