Finding the Fourth Proportional to 311,865.66, 430,374.67 and 168,625.67
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Solution
The fourth proportional to 311,865.66, 430,374.67 and 168,625.67 is: 232,703.45
Step by Step Solution
- Step 1: Write the proportion equation
311,865.66 : 430,374.67 = 168,625.67 : x - Step 2: Convert to fraction form
311,865.66/430,374.67 = 168,625.67/x - Step 3: Cross multiply
311,865.66x = 430,374.67 × 168,625.67 - Step 4: Simplify right side
311,865.66x = 72,572,214,506.34 - Step 5: Solve for x
x = 72,572,214,506.34/311,865.66 - Step 6: Final answer
x = 232,703.45
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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.