Home / 353,120.64-487,312.03-191,976.31

Finding the Fourth Proportional to 353,120.64, 487,312.03 and 191,976.31

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Solution

The fourth proportional to 353,120.64, 487,312.03 and 191,976.31 is: 264,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,120.64 : 487,312.03 = 191,976.31 : x
  2. Step 2: Convert to fraction form
    353,120.64/487,312.03 = 191,976.31/x
  3. Step 3: Cross multiply
    353,120.64x = 487,312.03 × 191,976.31
  4. Step 4: Simplify right side
    353,120.64x = 93,552,365,338.01
  5. Step 5: Solve for x
    x = 93,552,365,338.01/353,120.64
  6. Step 6: Final answer
    x = 264,930.32

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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.