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Finding the Fourth Proportional to 373.36, 557.32 and 342.60

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Solution

The fourth proportional to 373.36, 557.32 and 342.60 is: 511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.36 : 557.32 = 342.60 : x
  2. Step 2: Convert to fraction form
    373.36/557.32 = 342.60/x
  3. Step 3: Cross multiply
    373.36x = 557.32 × 342.60
  4. Step 4: Simplify right side
    373.36x = 190,937.83
  5. Step 5: Solve for x
    x = 190,937.83/373.36
  6. Step 6: Final answer
    x = 511.40

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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.