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Finding the Fourth Proportional to 545,499.55, 818,378.07 and 171,522.55

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Solution

The fourth proportional to 545,499.55, 818,378.07 and 171,522.55 is: 257,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,499.55 : 818,378.07 = 171,522.55 : x
  2. Step 2: Convert to fraction form
    545,499.55/818,378.07 = 171,522.55/x
  3. Step 3: Cross multiply
    545,499.55x = 818,378.07 × 171,522.55
  4. Step 4: Simplify right side
    545,499.55x = 140,370,293,430.48
  5. Step 5: Solve for x
    x = 140,370,293,430.48/545,499.55
  6. Step 6: Final answer
    x = 257,324.31

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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.