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Finding the Fourth Proportional to 370.08, 551.16 and 348

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Solution

The fourth proportional to 370.08, 551.16 and 348 is: 518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.08 : 551.16 = 348 : x
  2. Step 2: Convert to fraction form
    370.08/551.16 = 348/x
  3. Step 3: Cross multiply
    370.08x = 551.16 × 348
  4. Step 4: Simplify right side
    370.08x = 191,803.68
  5. Step 5: Solve for x
    x = 191,803.68/370.08
  6. Step 6: Final answer
    x = 518.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.