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Finding the Fourth Proportional to 228,285.50, 315,035.07 and 127,683.50

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Solution

The fourth proportional to 228,285.50, 315,035.07 and 127,683.50 is: 176,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,285.50 : 315,035.07 = 127,683.50 : x
  2. Step 2: Convert to fraction form
    228,285.50/315,035.07 = 127,683.50/x
  3. Step 3: Cross multiply
    228,285.50x = 315,035.07 × 127,683.50
  4. Step 4: Simplify right side
    228,285.50x = 40,224,780,360.35
  5. Step 5: Solve for x
    x = 40,224,780,360.35/228,285.50
  6. Step 6: Final answer
    x = 176,203.83

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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.