Finding the Fourth Proportional to 397,068.64, 547,956.96 and 215,782.08
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Solution
The fourth proportional to 397,068.64, 547,956.96 and 215,782.08 is: 297,780.49
Step by Step Solution
- Step 1: Write the proportion equation
397,068.64 : 547,956.96 = 215,782.08 : x - Step 2: Convert to fraction form
397,068.64/547,956.96 = 215,782.08/x - Step 3: Cross multiply
397,068.64x = 547,956.96 × 215,782.08 - Step 4: Simplify right side
397,068.64x = 118,239,292,579.28 - Step 5: Solve for x
x = 118,239,292,579.28/397,068.64 - Step 6: Final answer
x = 297,780.49
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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.