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Finding the Fourth Proportional to 286,373.84, 395,172.80 and 165,522.96

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Solution

The fourth proportional to 286,373.84, 395,172.80 and 165,522.96 is: 228,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,373.84 : 395,172.80 = 165,522.96 : x
  2. Step 2: Convert to fraction form
    286,373.84/395,172.80 = 165,522.96/x
  3. Step 3: Cross multiply
    286,373.84x = 395,172.80 × 165,522.96
  4. Step 4: Simplify right side
    286,373.84x = 65,410,171,567.49
  5. Step 5: Solve for x
    x = 65,410,171,567.49/286,373.84
  6. Step 6: Final answer
    x = 228,408.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.