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Finding the Fourth Proportional to 545.06, 751.85 and 348.67

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Solution

The fourth proportional to 545.06, 751.85 and 348.67 is: 480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.06 : 751.85 = 348.67 : x
  2. Step 2: Convert to fraction form
    545.06/751.85 = 348.67/x
  3. Step 3: Cross multiply
    545.06x = 751.85 × 348.67
  4. Step 4: Simplify right side
    545.06x = 262,143.78
  5. Step 5: Solve for x
    x = 262,143.78/545.06
  6. Step 6: Final answer
    x = 480.95

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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.