Finding the Fourth Proportional to 258,038.84, 386,364.49 and 210,457.62
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Solution
The fourth proportional to 258,038.84, 386,364.49 and 210,457.62 is: 315,120.59
Step by Step Solution
- Step 1: Write the proportion equation
258,038.84 : 386,364.49 = 210,457.62 : x - Step 2: Convert to fraction form
258,038.84/386,364.49 = 210,457.62/x - Step 3: Cross multiply
258,038.84x = 386,364.49 × 210,457.62 - Step 4: Simplify right side
258,038.84x = 81,313,351,017.91 - Step 5: Solve for x
x = 81,313,351,017.91/258,038.84 - Step 6: Final answer
x = 315,120.59
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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.