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Finding the Fourth Proportional to 440.55, 606.53 and 382.35

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Solution

The fourth proportional to 440.55, 606.53 and 382.35 is: 526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.55 : 606.53 = 382.35 : x
  2. Step 2: Convert to fraction form
    440.55/606.53 = 382.35/x
  3. Step 3: Cross multiply
    440.55x = 606.53 × 382.35
  4. Step 4: Simplify right side
    440.55x = 231,904.83
  5. Step 5: Solve for x
    x = 231,904.83/440.55
  6. Step 6: Final answer
    x = 526.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.