Finding the Fourth Proportional to 278,413.13, 417,681.25 and 118,480.65
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Solution
The fourth proportional to 278,413.13, 417,681.25 and 118,480.65 is: 177,747.17
Step by Step Solution
- Step 1: Write the proportion equation
278,413.13 : 417,681.25 = 118,480.65 : x - Step 2: Convert to fraction form
278,413.13/417,681.25 = 118,480.65/x - Step 3: Cross multiply
278,413.13x = 417,681.25 × 118,480.65 - Step 4: Simplify right side
278,413.13x = 49,487,145,992.81 - Step 5: Solve for x
x = 49,487,145,992.81/278,413.13 - Step 6: Final answer
x = 177,747.17
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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.