Home / 389,120.15-536,894.25-236,154.89

Finding the Fourth Proportional to 389,120.15, 536,894.25 and 236,154.89

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Solution

The fourth proportional to 389,120.15, 536,894.25 and 236,154.89 is: 325,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,120.15 : 536,894.25 = 236,154.89 : x
  2. Step 2: Convert to fraction form
    389,120.15/536,894.25 = 236,154.89/x
  3. Step 3: Cross multiply
    389,120.15x = 536,894.25 × 236,154.89
  4. Step 4: Simplify right side
    389,120.15x = 126,790,202,550.38
  5. Step 5: Solve for x
    x = 126,790,202,550.38/389,120.15
  6. Step 6: Final answer
    x = 325,838.18

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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.