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Finding the Fourth Proportional to 397,776.16, 548,999.28 and 254,529.28

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Solution

The fourth proportional to 397,776.16, 548,999.28 and 254,529.28 is: 351,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,776.16 : 548,999.28 = 254,529.28 : x
  2. Step 2: Convert to fraction form
    397,776.16/548,999.28 = 254,529.28/x
  3. Step 3: Cross multiply
    397,776.16x = 548,999.28 × 254,529.28
  4. Step 4: Simplify right side
    397,776.16x = 139,736,391,458.92
  5. Step 5: Solve for x
    x = 139,736,391,458.92/397,776.16
  6. Step 6: Final answer
    x = 351,294.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.