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Finding the Fourth Proportional to 215,567.70, 323,351.55 and 165,743.70

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Solution

The fourth proportional to 215,567.70, 323,351.55 and 165,743.70 is: 248,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,567.70 : 323,351.55 = 165,743.70 : x
  2. Step 2: Convert to fraction form
    215,567.70/323,351.55 = 165,743.70/x
  3. Step 3: Cross multiply
    215,567.70x = 323,351.55 × 165,743.70
  4. Step 4: Simplify right side
    215,567.70x = 53,593,482,297.74
  5. Step 5: Solve for x
    x = 53,593,482,297.74/215,567.70
  6. Step 6: Final answer
    x = 248,615.55

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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.