Finding the Fourth Proportional to 383,157.84, 528,774.28 and 213,391.97
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Solution
The fourth proportional to 383,157.84, 528,774.28 and 213,391.97 is: 294,490.08
Step by Step Solution
- Step 1: Write the proportion equation
383,157.84 : 528,774.28 = 213,391.97 : x - Step 2: Convert to fraction form
383,157.84/528,774.28 = 213,391.97/x - Step 3: Cross multiply
383,157.84x = 528,774.28 × 213,391.97 - Step 4: Simplify right side
383,157.84x = 112,836,184,100.08 - Step 5: Solve for x
x = 112,836,184,100.08/383,157.84 - Step 6: Final answer
x = 294,490.08
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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.