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Finding the Fourth Proportional to 228,303.48, 315,057.60 and 131,471.91

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Solution

The fourth proportional to 228,303.48, 315,057.60 and 131,471.91 is: 181,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,303.48 : 315,057.60 = 131,471.91 : x
  2. Step 2: Convert to fraction form
    228,303.48/315,057.60 = 131,471.91/x
  3. Step 3: Cross multiply
    228,303.48x = 315,057.60 × 131,471.91
  4. Step 4: Simplify right side
    228,303.48x = 41,421,224,432.02
  5. Step 5: Solve for x
    x = 41,421,224,432.02/228,303.48
  6. Step 6: Final answer
    x = 181,430.54

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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.