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Finding the Fourth Proportional to 425.01, 586.40 and 275.68

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Solution

The fourth proportional to 425.01, 586.40 and 275.68 is: 380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.01 : 586.40 = 275.68 : x
  2. Step 2: Convert to fraction form
    425.01/586.40 = 275.68/x
  3. Step 3: Cross multiply
    425.01x = 586.40 × 275.68
  4. Step 4: Simplify right side
    425.01x = 161,657.23
  5. Step 5: Solve for x
    x = 161,657.23/425.01
  6. Step 6: Final answer
    x = 380.36

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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.