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Finding the Fourth Proportional to 453.15, 624.55 and 374.00

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Solution

The fourth proportional to 453.15, 624.55 and 374.00 is: 515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.15 : 624.55 = 374.00 : x
  2. Step 2: Convert to fraction form
    453.15/624.55 = 374.00/x
  3. Step 3: Cross multiply
    453.15x = 624.55 × 374.00
  4. Step 4: Simplify right side
    453.15x = 233,581.39
  5. Step 5: Solve for x
    x = 233,581.39/453.15
  6. Step 6: Final answer
    x = 515.46

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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.