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Finding the Fourth Proportional to 228,255.84, 315,077.76 and 171,830.88

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Solution

The fourth proportional to 228,255.84, 315,077.76 and 171,830.88 is: 237,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,255.84 : 315,077.76 = 171,830.88 : x
  2. Step 2: Convert to fraction form
    228,255.84/315,077.76 = 171,830.88/x
  3. Step 3: Cross multiply
    228,255.84x = 315,077.76 × 171,830.88
  4. Step 4: Simplify right side
    228,255.84x = 54,140,088,769.23
  5. Step 5: Solve for x
    x = 54,140,088,769.23/228,255.84
  6. Step 6: Final answer
    x = 237,190.38

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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.