Home / 219,262.47-328,696.84-86,238.19

Finding the Fourth Proportional to 219,262.47, 328,696.84 and 86,238.19

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Solution

The fourth proportional to 219,262.47, 328,696.84 and 86,238.19 is: 129,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,262.47 : 328,696.84 = 86,238.19 : x
  2. Step 2: Convert to fraction form
    219,262.47/328,696.84 = 86,238.19/x
  3. Step 3: Cross multiply
    219,262.47x = 328,696.84 × 86,238.19
  4. Step 4: Simplify right side
    219,262.47x = 28,346,220,540.32
  5. Step 5: Solve for x
    x = 28,346,220,540.32/219,262.47
  6. Step 6: Final answer
    x = 129,279.86

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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.