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Finding the Fourth Proportional to 373.72, 556.76 and 356.32

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Solution

The fourth proportional to 373.72, 556.76 and 356.32 is: 530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.72 : 556.76 = 356.32 : x
  2. Step 2: Convert to fraction form
    373.72/556.76 = 356.32/x
  3. Step 3: Cross multiply
    373.72x = 556.76 × 356.32
  4. Step 4: Simplify right side
    373.72x = 198,384.72
  5. Step 5: Solve for x
    x = 198,384.72/373.72
  6. Step 6: Final answer
    x = 530.84

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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.