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Finding the Fourth Proportional to 536.13, 740.43 and 436.81

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Solution

The fourth proportional to 536.13, 740.43 and 436.81 is: 603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.13 : 740.43 = 436.81 : x
  2. Step 2: Convert to fraction form
    536.13/740.43 = 436.81/x
  3. Step 3: Cross multiply
    536.13x = 740.43 × 436.81
  4. Step 4: Simplify right side
    536.13x = 323,427.23
  5. Step 5: Solve for x
    x = 323,427.23/536.13
  6. Step 6: Final answer
    x = 603.26

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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.