Finding the Fourth Proportional to 387,069.36, 534,210.84 and 217,314.96
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Solution
The fourth proportional to 387,069.36, 534,210.84 and 217,314.96 is: 299,925.59
Step by Step Solution
- Step 1: Write the proportion equation
387,069.36 : 534,210.84 = 217,314.96 : x - Step 2: Convert to fraction form
387,069.36/534,210.84 = 217,314.96/x - Step 3: Cross multiply
387,069.36x = 534,210.84 × 217,314.96 - Step 4: Simplify right side
387,069.36x = 116,092,007,326.17 - Step 5: Solve for x
x = 116,092,007,326.17/387,069.36 - Step 6: Final answer
x = 299,925.59
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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.