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Finding the Fourth Proportional to 338,256.72, 507,408.72 and 135,852.84

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Solution

The fourth proportional to 338,256.72, 507,408.72 and 135,852.84 is: 203,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,256.72 : 507,408.72 = 135,852.84 : x
  2. Step 2: Convert to fraction form
    338,256.72/507,408.72 = 135,852.84/x
  3. Step 3: Cross multiply
    338,256.72x = 507,408.72 × 135,852.84
  4. Step 4: Simplify right side
    338,256.72x = 68,932,915,652.76
  5. Step 5: Solve for x
    x = 68,932,915,652.76/338,256.72
  6. Step 6: Final answer
    x = 203,788.75

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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.