Home / 219,057.07-328,640.28-61,284.34

Finding the Fourth Proportional to 219,057.07, 328,640.28 and 61,284.34

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Solution

The fourth proportional to 219,057.07, 328,640.28 and 61,284.34 is: 91,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,057.07 : 328,640.28 = 61,284.34 : x
  2. Step 2: Convert to fraction form
    219,057.07/328,640.28 = 61,284.34/x
  3. Step 3: Cross multiply
    219,057.07x = 328,640.28 × 61,284.34
  4. Step 4: Simplify right side
    219,057.07x = 20,140,502,657.22
  5. Step 5: Solve for x
    x = 20,140,502,657.22/219,057.07
  6. Step 6: Final answer
    x = 91,941.81

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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.