Finding the Fourth Proportional to 383,289.36, 528,955.68 and 213,523.44
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Solution
The fourth proportional to 383,289.36, 528,955.68 and 213,523.44 is: 294,671.46
Step by Step Solution
- Step 1: Write the proportion equation
383,289.36 : 528,955.68 = 213,523.44 : x - Step 2: Convert to fraction form
383,289.36/528,955.68 = 213,523.44/x - Step 3: Cross multiply
383,289.36x = 528,955.68 × 213,523.44 - Step 4: Simplify right side
383,289.36x = 112,944,436,401.14 - Step 5: Solve for x
x = 112,944,436,401.14/383,289.36 - Step 6: Final answer
x = 294,671.46
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1.5x scale
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.