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Finding the Fourth Proportional to 545.61, 751.91 and 370.65

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Solution

The fourth proportional to 545.61, 751.91 and 370.65 is: 510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.61 : 751.91 = 370.65 : x
  2. Step 2: Convert to fraction form
    545.61/751.91 = 370.65/x
  3. Step 3: Cross multiply
    545.61x = 751.91 × 370.65
  4. Step 4: Simplify right side
    545.61x = 278,693.59
  5. Step 5: Solve for x
    x = 278,693.59/545.61
  6. Step 6: Final answer
    x = 510.79

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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.