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Finding the Fourth Proportional to 355,503.50, 533,452.07 and 212,998.58

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Solution

The fourth proportional to 355,503.50, 533,452.07 and 212,998.58 is: 319,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,503.50 : 533,452.07 = 212,998.58 : x
  2. Step 2: Convert to fraction form
    355,503.50/533,452.07 = 212,998.58/x
  3. Step 3: Cross multiply
    355,503.50x = 533,452.07 × 212,998.58
  4. Step 4: Simplify right side
    355,503.50x = 113,624,533,408.06
  5. Step 5: Solve for x
    x = 113,624,533,408.06/355,503.50
  6. Step 6: Final answer
    x = 319,615.79

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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.