Finding the Fourth Proportional to 438,335.70, 657,525.15 and 228,383.70
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Solution
The fourth proportional to 438,335.70, 657,525.15 and 228,383.70 is: 342,586.80
Step by Step Solution
- Step 1: Write the proportion equation
438,335.70 : 657,525.15 = 228,383.70 : x - Step 2: Convert to fraction form
438,335.70/657,525.15 = 228,383.70/x - Step 3: Cross multiply
438,335.70x = 657,525.15 × 228,383.70 - Step 4: Simplify right side
438,335.70x = 150,168,026,600.06 - Step 5: Solve for x
x = 150,168,026,600.06/438,335.70 - Step 6: Final answer
x = 342,586.80
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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.