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Finding the Fourth Proportional to 536.08, 802.30 and 449.51

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Solution

The fourth proportional to 536.08, 802.30 and 449.51 is: 672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.08 : 802.30 = 449.51 : x
  2. Step 2: Convert to fraction form
    536.08/802.30 = 449.51/x
  3. Step 3: Cross multiply
    536.08x = 802.30 × 449.51
  4. Step 4: Simplify right side
    536.08x = 360,643.76
  5. Step 5: Solve for x
    x = 360,643.76/536.08
  6. Step 6: Final answer
    x = 672.74

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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.