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Finding the Fourth Proportional to 435.24, 653.16 and 290.94

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Solution

The fourth proportional to 435.24, 653.16 and 290.94 is: 436.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.24 : 653.16 = 290.94 : x
  2. Step 2: Convert to fraction form
    435.24/653.16 = 290.94/x
  3. Step 3: Cross multiply
    435.24x = 653.16 × 290.94
  4. Step 4: Simplify right side
    435.24x = 190,030.37
  5. Step 5: Solve for x
    x = 190,030.37/435.24
  6. Step 6: Final answer
    x = 436.61

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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.