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Finding the Fourth Proportional to 413.50, 570.64 and 258.34

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Solution

The fourth proportional to 413.50, 570.64 and 258.34 is: 356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.50 : 570.64 = 258.34 : x
  2. Step 2: Convert to fraction form
    413.50/570.64 = 258.34/x
  3. Step 3: Cross multiply
    413.50x = 570.64 × 258.34
  4. Step 4: Simplify right side
    413.50x = 147,419.14
  5. Step 5: Solve for x
    x = 147,419.14/413.50
  6. Step 6: Final answer
    x = 356.52

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.