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Finding the Fourth Proportional to 253,360.37, 380,040.55 and 205,918.19

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Solution

The fourth proportional to 253,360.37, 380,040.55 and 205,918.19 is: 308,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,360.37 : 380,040.55 = 205,918.19 : x
  2. Step 2: Convert to fraction form
    253,360.37/380,040.55 = 205,918.19/x
  3. Step 3: Cross multiply
    253,360.37x = 380,040.55 × 205,918.19
  4. Step 4: Simplify right side
    253,360.37x = 78,257,262,182.60
  5. Step 5: Solve for x
    x = 78,257,262,182.60/253,360.37
  6. Step 6: Final answer
    x = 308,877.28

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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.