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Finding the Fourth Proportional to 602.94, 904.30 and 278.24

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Solution

The fourth proportional to 602.94, 904.30 and 278.24 is: 417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.94 : 904.30 = 278.24 : x
  2. Step 2: Convert to fraction form
    602.94/904.30 = 278.24/x
  3. Step 3: Cross multiply
    602.94x = 904.30 × 278.24
  4. Step 4: Simplify right side
    602.94x = 251,612.43
  5. Step 5: Solve for x
    x = 251,612.43/602.94
  6. Step 6: Final answer
    x = 417.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.