Home / 228,487.23-315,295.07-142,542.23

Finding the Fourth Proportional to 228,487.23, 315,295.07 and 142,542.23

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Solution

The fourth proportional to 228,487.23, 315,295.07 and 142,542.23 is: 196,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,487.23 : 315,295.07 = 142,542.23 : x
  2. Step 2: Convert to fraction form
    228,487.23/315,295.07 = 142,542.23/x
  3. Step 3: Cross multiply
    228,487.23x = 315,295.07 × 142,542.23
  4. Step 4: Simplify right side
    228,487.23x = 44,942,860,096.62
  5. Step 5: Solve for x
    x = 44,942,860,096.62/228,487.23
  6. Step 6: Final answer
    x = 196,697.47

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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.