Finding the Fourth Proportional to 282,725.04, 390,161.40 and 155,413.68
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Solution
The fourth proportional to 282,725.04, 390,161.40 and 155,413.68 is: 214,471.34
Step by Step Solution
- Step 1: Write the proportion equation
282,725.04 : 390,161.40 = 155,413.68 : x - Step 2: Convert to fraction form
282,725.04/390,161.40 = 155,413.68/x - Step 3: Cross multiply
282,725.04x = 390,161.40 × 155,413.68 - Step 4: Simplify right side
282,725.04x = 60,636,418,967.95 - Step 5: Solve for x
x = 60,636,418,967.95/282,725.04 - Step 6: Final answer
x = 214,471.34
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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.