Finding the Fourth Proportional to 311,503.96, 429,875.64 and 168,263.99
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Solution
The fourth proportional to 311,503.96, 429,875.64 and 168,263.99 is: 232,204.40
Step by Step Solution
- Step 1: Write the proportion equation
311,503.96 : 429,875.64 = 168,263.99 : x - Step 2: Convert to fraction form
311,503.96/429,875.64 = 168,263.99/x - Step 3: Cross multiply
311,503.96x = 429,875.64 × 168,263.99 - Step 4: Simplify right side
311,503.96x = 72,332,590,390.20 - Step 5: Solve for x
x = 72,332,590,390.20/311,503.96 - Step 6: Final answer
x = 232,204.40
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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.