Home / 286,540.34-395,417.85-159,212.66

Finding the Fourth Proportional to 286,540.34, 395,417.85 and 159,212.66

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Solution

The fourth proportional to 286,540.34, 395,417.85 and 159,212.66 is: 219,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,540.34 : 395,417.85 = 159,212.66 : x
  2. Step 2: Convert to fraction form
    286,540.34/395,417.85 = 159,212.66/x
  3. Step 3: Cross multiply
    286,540.34x = 395,417.85 × 159,212.66
  4. Step 4: Simplify right side
    286,540.34x = 62,955,527,709.98
  5. Step 5: Solve for x
    x = 62,955,527,709.98/286,540.34
  6. Step 6: Final answer
    x = 219,709.13

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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.