Finding the Fourth Proportional to 258,530.08, 387,783.84 and 81,033.04
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Solution
The fourth proportional to 258,530.08, 387,783.84 and 81,033.04 is: 121,546.02
Step by Step Solution
- Step 1: Write the proportion equation
258,530.08 : 387,783.84 = 81,033.04 : x - Step 2: Convert to fraction form
258,530.08/387,783.84 = 81,033.04/x - Step 3: Cross multiply
258,530.08x = 387,783.84 × 81,033.04 - Step 4: Simplify right side
258,530.08x = 31,423,303,418.07 - Step 5: Solve for x
x = 31,423,303,418.07/258,530.08 - Step 6: Final answer
x = 121,546.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.