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Finding the Fourth Proportional to 653.55, 901.97 and 373.81

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Solution

The fourth proportional to 653.55, 901.97 and 373.81 is: 515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.55 : 901.97 = 373.81 : x
  2. Step 2: Convert to fraction form
    653.55/901.97 = 373.81/x
  3. Step 3: Cross multiply
    653.55x = 901.97 × 373.81
  4. Step 4: Simplify right side
    653.55x = 337,163.81
  5. Step 5: Solve for x
    x = 337,163.81/653.55
  6. Step 6: Final answer
    x = 515.90

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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.