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Finding the Fourth Proportional to 315,728.98, 473,262.68 and 147,110.27

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Solution

The fourth proportional to 315,728.98, 473,262.68 and 147,110.27 is: 220,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,728.98 : 473,262.68 = 147,110.27 : x
  2. Step 2: Convert to fraction form
    315,728.98/473,262.68 = 147,110.27/x
  3. Step 3: Cross multiply
    315,728.98x = 473,262.68 × 147,110.27
  4. Step 4: Simplify right side
    315,728.98x = 69,621,800,635.72
  5. Step 5: Solve for x
    x = 69,621,800,635.72/315,728.98
  6. Step 6: Final answer
    x = 220,511.28

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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.