Home / 389,118.15-536,891.49-236,152.89

Finding the Fourth Proportional to 389,118.15, 536,891.49 and 236,152.89

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Solution

The fourth proportional to 389,118.15, 536,891.49 and 236,152.89 is: 325,835.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,118.15 : 536,891.49 = 236,152.89 : x
  2. Step 2: Convert to fraction form
    389,118.15/536,891.49 = 236,152.89/x
  3. Step 3: Cross multiply
    389,118.15x = 536,891.49 × 236,152.89
  4. Step 4: Simplify right side
    389,118.15x = 126,788,476,979.91
  5. Step 5: Solve for x
    x = 126,788,476,979.91/389,118.15
  6. Step 6: Final answer
    x = 325,835.42

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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.