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Finding the Fourth Proportional to 315,207.30, 435,019.58 and 192,771.30

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Solution

The fourth proportional to 315,207.30, 435,019.58 and 192,771.30 is: 266,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,207.30 : 435,019.58 = 192,771.30 : x
  2. Step 2: Convert to fraction form
    315,207.30/435,019.58 = 192,771.30/x
  3. Step 3: Cross multiply
    315,207.30x = 435,019.58 × 192,771.30
  4. Step 4: Simplify right side
    315,207.30x = 83,859,288,998.20
  5. Step 5: Solve for x
    x = 83,859,288,998.20/315,207.30
  6. Step 6: Final answer
    x = 266,044.88

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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.