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Finding the Fourth Proportional to 461.60, 690.76 and 370.88

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Solution

The fourth proportional to 461.60, 690.76 and 370.88 is: 555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.60 : 690.76 = 370.88 : x
  2. Step 2: Convert to fraction form
    461.60/690.76 = 370.88/x
  3. Step 3: Cross multiply
    461.60x = 690.76 × 370.88
  4. Step 4: Simplify right side
    461.60x = 256,189.07
  5. Step 5: Solve for x
    x = 256,189.07/461.60
  6. Step 6: Final answer
    x = 555.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.