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Finding the Fourth Proportional to 545,546.75, 818,269.64 and 257,292.29

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Solution

The fourth proportional to 545,546.75, 818,269.64 and 257,292.29 is: 385,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,546.75 : 818,269.64 = 257,292.29 : x
  2. Step 2: Convert to fraction form
    545,546.75/818,269.64 = 257,292.29/x
  3. Step 3: Cross multiply
    545,546.75x = 818,269.64 × 257,292.29
  4. Step 4: Simplify right side
    545,546.75x = 210,534,467,203.78
  5. Step 5: Solve for x
    x = 210,534,467,203.78/545,546.75
  6. Step 6: Final answer
    x = 385,914.62

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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.