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Finding the Fourth Proportional to 228,498.48, 315,362.76 and 142,471.44

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Solution

The fourth proportional to 228,498.48, 315,362.76 and 142,471.44 is: 196,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,498.48 : 315,362.76 = 142,471.44 : x
  2. Step 2: Convert to fraction form
    228,498.48/315,362.76 = 142,471.44/x
  3. Step 3: Cross multiply
    228,498.48x = 315,362.76 × 142,471.44
  4. Step 4: Simplify right side
    228,498.48x = 44,930,186,539.57
  5. Step 5: Solve for x
    x = 44,930,186,539.57/228,498.48
  6. Step 6: Final answer
    x = 196,632.32

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1.5x scale

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.