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Finding the Fourth Proportional to 379,372.50, 569,091.56 and 98,889.75

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Solution

The fourth proportional to 379,372.50, 569,091.56 and 98,889.75 is: 148,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,372.50 : 569,091.56 = 98,889.75 : x
  2. Step 2: Convert to fraction form
    379,372.50/569,091.56 = 98,889.75/x
  3. Step 3: Cross multiply
    379,372.50x = 569,091.56 × 98,889.75
  4. Step 4: Simplify right side
    379,372.50x = 56,277,321,601.06
  5. Step 5: Solve for x
    x = 56,277,321,601.06/379,372.50
  6. Step 6: Final answer
    x = 148,343.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.