Finding the Fourth Proportional to 155,970.81, 234,087.44 and 146,129.31
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Solution
The fourth proportional to 155,970.81, 234,087.44 and 146,129.31 is: 219,316.91
Step by Step Solution
- Step 1: Write the proportion equation
155,970.81 : 234,087.44 = 146,129.31 : x - Step 2: Convert to fraction form
155,970.81/234,087.44 = 146,129.31/x - Step 3: Cross multiply
155,970.81x = 234,087.44 × 146,129.31 - Step 4: Simplify right side
155,970.81x = 34,207,035,356.22 - Step 5: Solve for x
x = 34,207,035,356.22/155,970.81 - Step 6: Final answer
x = 219,316.91
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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.