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Finding the Fourth Proportional to 545.55, 751.71 and 370.59

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Solution

The fourth proportional to 545.55, 751.71 and 370.59 is: 510.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.55 : 751.71 = 370.59 : x
  2. Step 2: Convert to fraction form
    545.55/751.71 = 370.59/x
  3. Step 3: Cross multiply
    545.55x = 751.71 × 370.59
  4. Step 4: Simplify right side
    545.55x = 278,576.21
  5. Step 5: Solve for x
    x = 278,576.21/545.55
  6. Step 6: Final answer
    x = 510.63

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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.