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Finding the Fourth Proportional to 434.08, 599.36 and 302.88

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Solution

The fourth proportional to 434.08, 599.36 and 302.88 is: 418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.08 : 599.36 = 302.88 : x
  2. Step 2: Convert to fraction form
    434.08/599.36 = 302.88/x
  3. Step 3: Cross multiply
    434.08x = 599.36 × 302.88
  4. Step 4: Simplify right side
    434.08x = 181,534.16
  5. Step 5: Solve for x
    x = 181,534.16/434.08
  6. Step 6: Final answer
    x = 418.20

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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.