Home / 402,255.36-603,382.56-102,736.20

Finding the Fourth Proportional to 402,255.36, 603,382.56 and 102,736.20

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Solution

The fourth proportional to 402,255.36, 603,382.56 and 102,736.20 is: 154,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,255.36 : 603,382.56 = 102,736.20 : x
  2. Step 2: Convert to fraction form
    402,255.36/603,382.56 = 102,736.20/x
  3. Step 3: Cross multiply
    402,255.36x = 603,382.56 × 102,736.20
  4. Step 4: Simplify right side
    402,255.36x = 61,989,231,360.67
  5. Step 5: Solve for x
    x = 61,989,231,360.67/402,255.36
  6. Step 6: Final answer
    x = 154,104.18

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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.