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Finding the Fourth Proportional to 307.99, 458.62 and 304.58

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Solution

The fourth proportional to 307.99, 458.62 and 304.58 is: 453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.99 : 458.62 = 304.58 : x
  2. Step 2: Convert to fraction form
    307.99/458.62 = 304.58/x
  3. Step 3: Cross multiply
    307.99x = 458.62 × 304.58
  4. Step 4: Simplify right side
    307.99x = 139,686.43
  5. Step 5: Solve for x
    x = 139,686.43/307.99
  6. Step 6: Final answer
    x = 453.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.