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Finding the Fourth Proportional to 423.29, 583.44 and 292.07

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Solution

The fourth proportional to 423.29, 583.44 and 292.07 is: 402.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.29 : 583.44 = 292.07 : x
  2. Step 2: Convert to fraction form
    423.29/583.44 = 292.07/x
  3. Step 3: Cross multiply
    423.29x = 583.44 × 292.07
  4. Step 4: Simplify right side
    423.29x = 170,405.32
  5. Step 5: Solve for x
    x = 170,405.32/423.29
  6. Step 6: Final answer
    x = 402.57

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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.