Finding the Fourth Proportional to 378,528.35, 522,237.21 and 242,637.23
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Solution
The fourth proportional to 378,528.35, 522,237.21 and 242,637.23 is: 334,754.82
Step by Step Solution
- Step 1: Write the proportion equation
378,528.35 : 522,237.21 = 242,637.23 : x - Step 2: Convert to fraction form
378,528.35/522,237.21 = 242,637.23/x - Step 3: Cross multiply
378,528.35x = 522,237.21 × 242,637.23 - Step 4: Simplify right side
378,528.35x = 126,714,190,037.33 - Step 5: Solve for x
x = 126,714,190,037.33/378,528.35 - Step 6: Final answer
x = 334,754.82
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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.