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Finding the Fourth Proportional to 532.85, 800.28 and 435.51

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Solution

The fourth proportional to 532.85, 800.28 and 435.51 is: 654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.85 : 800.28 = 435.51 : x
  2. Step 2: Convert to fraction form
    532.85/800.28 = 435.51/x
  3. Step 3: Cross multiply
    532.85x = 800.28 × 435.51
  4. Step 4: Simplify right side
    532.85x = 348,529.94
  5. Step 5: Solve for x
    x = 348,529.94/532.85
  6. Step 6: Final answer
    x = 654.09

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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.