Finding the Fourth Proportional to 153,413.70, 229,904.55 and 121,877.70
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Solution
The fourth proportional to 153,413.70, 229,904.55 and 121,877.70 is: 182,644.95
Step by Step Solution
- Step 1: Write the proportion equation
153,413.70 : 229,904.55 = 121,877.70 : x - Step 2: Convert to fraction form
153,413.70/229,904.55 = 121,877.70/x - Step 3: Cross multiply
153,413.70x = 229,904.55 × 121,877.70 - Step 4: Simplify right side
153,413.70x = 28,020,237,773.54 - Step 5: Solve for x
x = 28,020,237,773.54/153,413.70 - Step 6: Final answer
x = 182,644.95
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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.