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Finding the Fourth Proportional to 368.63, 508.15 and 303.02

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Solution

The fourth proportional to 368.63, 508.15 and 303.02 is: 417.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.63 : 508.15 = 303.02 : x
  2. Step 2: Convert to fraction form
    368.63/508.15 = 303.02/x
  3. Step 3: Cross multiply
    368.63x = 508.15 × 303.02
  4. Step 4: Simplify right side
    368.63x = 153,979.36
  5. Step 5: Solve for x
    x = 153,979.36/368.63
  6. Step 6: Final answer
    x = 417.71

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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.