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Finding the Fourth Proportional to 399.95, 602.02 and 364.91

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Solution

The fourth proportional to 399.95, 602.02 and 364.91 is: 549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.95 : 602.02 = 364.91 : x
  2. Step 2: Convert to fraction form
    399.95/602.02 = 364.91/x
  3. Step 3: Cross multiply
    399.95x = 602.02 × 364.91
  4. Step 4: Simplify right side
    399.95x = 219,686.67
  5. Step 5: Solve for x
    x = 219,686.67/399.95
  6. Step 6: Final answer
    x = 549.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.