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Finding the Fourth Proportional to 543.95, 750.74 and 322.97

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Solution

The fourth proportional to 543.95, 750.74 and 322.97 is: 445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.95 : 750.74 = 322.97 : x
  2. Step 2: Convert to fraction form
    543.95/750.74 = 322.97/x
  3. Step 3: Cross multiply
    543.95x = 750.74 × 322.97
  4. Step 4: Simplify right side
    543.95x = 242,461.13
  5. Step 5: Solve for x
    x = 242,461.13/543.95
  6. Step 6: Final answer
    x = 445.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.