Home / 351,981.96-485,730.59-190,836.51

Finding the Fourth Proportional to 351,981.96, 485,730.59 and 190,836.51

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Solution

The fourth proportional to 351,981.96, 485,730.59 and 190,836.51 is: 263,351.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,981.96 : 485,730.59 = 190,836.51 : x
  2. Step 2: Convert to fraction form
    351,981.96/485,730.59 = 190,836.51/x
  3. Step 3: Cross multiply
    351,981.96x = 485,730.59 × 190,836.51
  4. Step 4: Simplify right side
    351,981.96x = 92,695,129,641.66
  5. Step 5: Solve for x
    x = 92,695,129,641.66/351,981.96
  6. Step 6: Final answer
    x = 263,351.93

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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.