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Finding the Fourth Proportional to 441.55, 607.90 and 383.35

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Solution

The fourth proportional to 441.55, 607.90 and 383.35 is: 527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.55 : 607.90 = 383.35 : x
  2. Step 2: Convert to fraction form
    441.55/607.90 = 383.35/x
  3. Step 3: Cross multiply
    441.55x = 607.90 × 383.35
  4. Step 4: Simplify right side
    441.55x = 233,038.47
  5. Step 5: Solve for x
    x = 233,038.47/441.55
  6. Step 6: Final answer
    x = 527.77

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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.