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Finding the Fourth Proportional to 374.16, 557.94 and 348.19

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Solution

The fourth proportional to 374.16, 557.94 and 348.19 is: 519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.16 : 557.94 = 348.19 : x
  2. Step 2: Convert to fraction form
    374.16/557.94 = 348.19/x
  3. Step 3: Cross multiply
    374.16x = 557.94 × 348.19
  4. Step 4: Simplify right side
    374.16x = 194,269.13
  5. Step 5: Solve for x
    x = 194,269.13/374.16
  6. Step 6: Final answer
    x = 519.21

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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.