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Finding the Fourth Proportional to 292.40, 435.62 and 273.76

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Solution

The fourth proportional to 292.40, 435.62 and 273.76 is: 407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.40 : 435.62 = 273.76 : x
  2. Step 2: Convert to fraction form
    292.40/435.62 = 273.76/x
  3. Step 3: Cross multiply
    292.40x = 435.62 × 273.76
  4. Step 4: Simplify right side
    292.40x = 119,255.33
  5. Step 5: Solve for x
    x = 119,255.33/292.40
  6. Step 6: Final answer
    x = 407.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.