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Finding the Fourth Proportional to 525.84, 725.72 and 368.32

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Solution

The fourth proportional to 525.84, 725.72 and 368.32 is: 508.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.84 : 725.72 = 368.32 : x
  2. Step 2: Convert to fraction form
    525.84/725.72 = 368.32/x
  3. Step 3: Cross multiply
    525.84x = 725.72 × 368.32
  4. Step 4: Simplify right side
    525.84x = 267,297.19
  5. Step 5: Solve for x
    x = 267,297.19/525.84
  6. Step 6: Final answer
    x = 508.32

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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.