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Finding the Fourth Proportional to 430.65, 592.11 and 383.58

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Solution

The fourth proportional to 430.65, 592.11 and 383.58 is: 527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.65 : 592.11 = 383.58 : x
  2. Step 2: Convert to fraction form
    430.65/592.11 = 383.58/x
  3. Step 3: Cross multiply
    430.65x = 592.11 × 383.58
  4. Step 4: Simplify right side
    430.65x = 227,121.55
  5. Step 5: Solve for x
    x = 227,121.55/430.65
  6. Step 6: Final answer
    x = 527.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.