Finding the Fourth Proportional to 387,051.52, 534,101.61 and 217,252.84
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Solution
The fourth proportional to 387,051.52, 534,101.61 and 217,252.84 is: 299,792.37
Step by Step Solution
- Step 1: Write the proportion equation
387,051.52 : 534,101.61 = 217,252.84 : x - Step 2: Convert to fraction form
387,051.52/534,101.61 = 217,252.84/x - Step 3: Cross multiply
387,051.52x = 534,101.61 × 217,252.84 - Step 4: Simplify right side
387,051.52x = 116,035,091,621.07 - Step 5: Solve for x
x = 116,035,091,621.07/387,051.52 - Step 6: Final answer
x = 299,792.37
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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.