Finding the Fourth Proportional to 210,177.18, 315,154.44 and 91,710.18
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Solution
The fourth proportional to 210,177.18, 315,154.44 and 91,710.18 is: 137,516.69
Step by Step Solution
- Step 1: Write the proportion equation
210,177.18 : 315,154.44 = 91,710.18 : x - Step 2: Convert to fraction form
210,177.18/315,154.44 = 91,710.18/x - Step 3: Cross multiply
210,177.18x = 315,154.44 × 91,710.18 - Step 4: Simplify right side
210,177.18x = 28,902,870,420.20 - Step 5: Solve for x
x = 28,902,870,420.20/210,177.18 - Step 6: Final answer
x = 137,516.69
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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.