Home / 305,215.76-457,233.24-171,690.32

Finding the Fourth Proportional to 305,215.76, 457,233.24 and 171,690.32

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Solution

The fourth proportional to 305,215.76, 457,233.24 and 171,690.32 is: 257,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,215.76 : 457,233.24 = 171,690.32 : x
  2. Step 2: Convert to fraction form
    305,215.76/457,233.24 = 171,690.32/x
  3. Step 3: Cross multiply
    305,215.76x = 457,233.24 × 171,690.32
  4. Step 4: Simplify right side
    305,215.76x = 78,502,521,290.24
  5. Step 5: Solve for x
    x = 78,502,521,290.24/305,215.76
  6. Step 6: Final answer
    x = 257,203.37

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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.