Finding the Fourth Proportional to 153,398.70, 229,812.81 and 83,336.94
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Solution
The fourth proportional to 153,398.70, 229,812.81 and 83,336.94 is: 124,850.45
Step by Step Solution
- Step 1: Write the proportion equation
153,398.70 : 229,812.81 = 83,336.94 : x - Step 2: Convert to fraction form
153,398.70/229,812.81 = 83,336.94/x - Step 3: Cross multiply
153,398.70x = 229,812.81 × 83,336.94 - Step 4: Simplify right side
153,398.70x = 19,151,896,358.20 - Step 5: Solve for x
x = 19,151,896,358.20/153,398.70 - Step 6: Final answer
x = 124,850.45
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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.