Finding the Fourth Proportional to 551,156.65, 826,413.19 and 213,803.09
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Solution
The fourth proportional to 551,156.65, 826,413.19 and 213,803.09 is: 320,579.81
Step by Step Solution
- Step 1: Write the proportion equation
551,156.65 : 826,413.19 = 213,803.09 : x - Step 2: Convert to fraction form
551,156.65/826,413.19 = 213,803.09/x - Step 3: Cross multiply
551,156.65x = 826,413.19 × 213,803.09 - Step 4: Simplify right side
551,156.65x = 176,689,695,972.04 - Step 5: Solve for x
x = 176,689,695,972.04/551,156.65 - Step 6: Final answer
x = 320,579.81
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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.