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Finding the Fourth Proportional to 315,495.48, 435,393.38 and 179,548.98

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Solution

The fourth proportional to 315,495.48, 435,393.38 and 179,548.98 is: 247,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,495.48 : 435,393.38 = 179,548.98 : x
  2. Step 2: Convert to fraction form
    315,495.48/435,393.38 = 179,548.98/x
  3. Step 3: Cross multiply
    315,495.48x = 435,393.38 × 179,548.98
  4. Step 4: Simplify right side
    315,495.48x = 78,174,436,380.01
  5. Step 5: Solve for x
    x = 78,174,436,380.01/315,495.48
  6. Step 6: Final answer
    x = 247,783.06

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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.