Home / 352,720.08-528,717.74-139,401.32

Finding the Fourth Proportional to 352,720.08, 528,717.74 and 139,401.32

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Solution

The fourth proportional to 352,720.08, 528,717.74 and 139,401.32 is: 208,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,720.08 : 528,717.74 = 139,401.32 : x
  2. Step 2: Convert to fraction form
    352,720.08/528,717.74 = 139,401.32/x
  3. Step 3: Cross multiply
    352,720.08x = 528,717.74 × 139,401.32
  4. Step 4: Simplify right side
    352,720.08x = 73,703,947,522.82
  5. Step 5: Solve for x
    x = 73,703,947,522.82/352,720.08
  6. Step 6: Final answer
    x = 208,958.75

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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.