Home / 255,372.72-383,058.06-77,879.22

Finding the Fourth Proportional to 255,372.72, 383,058.06 and 77,879.22

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Solution

The fourth proportional to 255,372.72, 383,058.06 and 77,879.22 is: 116,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,372.72 : 383,058.06 = 77,879.22 : x
  2. Step 2: Convert to fraction form
    255,372.72/383,058.06 = 77,879.22/x
  3. Step 3: Cross multiply
    255,372.72x = 383,058.06 × 77,879.22
  4. Step 4: Simplify right side
    255,372.72x = 29,832,262,927.51
  5. Step 5: Solve for x
    x = 29,832,262,927.51/255,372.72
  6. Step 6: Final answer
    x = 116,818.52

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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.