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Finding the Fourth Proportional to 348.32, 525.08 and 320.48

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Solution

The fourth proportional to 348.32, 525.08 and 320.48 is: 483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.32 : 525.08 = 320.48 : x
  2. Step 2: Convert to fraction form
    348.32/525.08 = 320.48/x
  3. Step 3: Cross multiply
    348.32x = 525.08 × 320.48
  4. Step 4: Simplify right side
    348.32x = 168,277.64
  5. Step 5: Solve for x
    x = 168,277.64/348.32
  6. Step 6: Final answer
    x = 483.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.