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Finding the Fourth Proportional to 423.29, 583.67 and 275.67

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Solution

The fourth proportional to 423.29, 583.67 and 275.67 is: 380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.29 : 583.67 = 275.67 : x
  2. Step 2: Convert to fraction form
    423.29/583.67 = 275.67/x
  3. Step 3: Cross multiply
    423.29x = 583.67 × 275.67
  4. Step 4: Simplify right side
    423.29x = 160,901.00
  5. Step 5: Solve for x
    x = 160,901.00/423.29
  6. Step 6: Final answer
    x = 380.12

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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.