Finding the Fourth Proportional to 261,088.18, 360,274.59 and 153,651.81
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Solution
The fourth proportional to 261,088.18, 360,274.59 and 153,651.81 is: 212,023.55
Step by Step Solution
- Step 1: Write the proportion equation
261,088.18 : 360,274.59 = 153,651.81 : x - Step 2: Convert to fraction form
261,088.18/360,274.59 = 153,651.81/x - Step 3: Cross multiply
261,088.18x = 360,274.59 × 153,651.81 - Step 4: Simplify right side
261,088.18x = 55,356,842,850.51 - Step 5: Solve for x
x = 55,356,842,850.51/261,088.18 - Step 6: Final answer
x = 212,023.55
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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.