Home / 425,831.77-638,918.06-173,131.67

Finding the Fourth Proportional to 425,831.77, 638,918.06 and 173,131.67

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Solution

The fourth proportional to 425,831.77, 638,918.06 and 173,131.67 is: 259,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,831.77 : 638,918.06 = 173,131.67 : x
  2. Step 2: Convert to fraction form
    425,831.77/638,918.06 = 173,131.67/x
  3. Step 3: Cross multiply
    425,831.77x = 638,918.06 × 173,131.67
  4. Step 4: Simplify right side
    425,831.77x = 110,616,950,720.96
  5. Step 5: Solve for x
    x = 110,616,950,720.96/425,831.77
  6. Step 6: Final answer
    x = 259,766.79

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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.