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Finding the Fourth Proportional to 461.68, 637.28 and 304.08

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Solution

The fourth proportional to 461.68, 637.28 and 304.08 is: 419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.68 : 637.28 = 304.08 : x
  2. Step 2: Convert to fraction form
    461.68/637.28 = 304.08/x
  3. Step 3: Cross multiply
    461.68x = 637.28 × 304.08
  4. Step 4: Simplify right side
    461.68x = 193,784.10
  5. Step 5: Solve for x
    x = 193,784.10/461.68
  6. Step 6: Final answer
    x = 419.74

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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.