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Finding the Fourth Proportional to 389.04, 537.30 and 364.92

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Solution

The fourth proportional to 389.04, 537.30 and 364.92 is: 503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    389.04 : 537.30 = 364.92 : x
  2. Step 2: Convert to fraction form
    389.04/537.30 = 364.92/x
  3. Step 3: Cross multiply
    389.04x = 537.30 × 364.92
  4. Step 4: Simplify right side
    389.04x = 196,071.52
  5. Step 5: Solve for x
    x = 196,071.52/389.04
  6. Step 6: Final answer
    x = 503.99

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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.