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Finding the Fourth Proportional to 545.93, 753.62 and 380.08

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Solution

The fourth proportional to 545.93, 753.62 and 380.08 is: 524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.93 : 753.62 = 380.08 : x
  2. Step 2: Convert to fraction form
    545.93/753.62 = 380.08/x
  3. Step 3: Cross multiply
    545.93x = 753.62 × 380.08
  4. Step 4: Simplify right side
    545.93x = 286,435.89
  5. Step 5: Solve for x
    x = 286,435.89/545.93
  6. Step 6: Final answer
    x = 524.68

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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.