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Finding the Fourth Proportional to 351,951.24, 525,993.63 and 257,379.96

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Solution

The fourth proportional to 351,951.24, 525,993.63 and 257,379.96 is: 384,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,951.24 : 525,993.63 = 257,379.96 : x
  2. Step 2: Convert to fraction form
    351,951.24/525,993.63 = 257,379.96/x
  3. Step 3: Cross multiply
    351,951.24x = 525,993.63 × 257,379.96
  4. Step 4: Simplify right side
    351,951.24x = 135,380,219,449.66
  5. Step 5: Solve for x
    x = 135,380,219,449.66/351,951.24
  6. Step 6: Final answer
    x = 384,656.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.