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Finding the Fourth Proportional to 581.90, 803.14 and 372.02

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Solution

The fourth proportional to 581.90, 803.14 and 372.02 is: 513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.90 : 803.14 = 372.02 : x
  2. Step 2: Convert to fraction form
    581.90/803.14 = 372.02/x
  3. Step 3: Cross multiply
    581.90x = 803.14 × 372.02
  4. Step 4: Simplify right side
    581.90x = 298,784.14
  5. Step 5: Solve for x
    x = 298,784.14/581.90
  6. Step 6: Final answer
    x = 513.46

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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.