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Finding the Fourth Proportional to 413.65, 570.86 and 247.93

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Solution

The fourth proportional to 413.65, 570.86 and 247.93 is: 342.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.65 : 570.86 = 247.93 : x
  2. Step 2: Convert to fraction form
    413.65/570.86 = 247.93/x
  3. Step 3: Cross multiply
    413.65x = 570.86 × 247.93
  4. Step 4: Simplify right side
    413.65x = 141,533.32
  5. Step 5: Solve for x
    x = 141,533.32/413.65
  6. Step 6: Final answer
    x = 342.16

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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.