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Finding the Fourth Proportional to 413.25, 619.55 and 282.93

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Solution

The fourth proportional to 413.25, 619.55 and 282.93 is: 424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.25 : 619.55 = 282.93 : x
  2. Step 2: Convert to fraction form
    413.25/619.55 = 282.93/x
  3. Step 3: Cross multiply
    413.25x = 619.55 × 282.93
  4. Step 4: Simplify right side
    413.25x = 175,291.25
  5. Step 5: Solve for x
    x = 175,291.25/413.25
  6. Step 6: Final answer
    x = 424.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.