Finding the Fourth Proportional to 253,071.30, 349,221.78 and 145,623.99
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Solution
The fourth proportional to 253,071.30, 349,221.78 and 145,623.99 is: 200,951.55
Step by Step Solution
- Step 1: Write the proportion equation
253,071.30 : 349,221.78 = 145,623.99 : x - Step 2: Convert to fraction form
253,071.30/349,221.78 = 145,623.99/x - Step 3: Cross multiply
253,071.30x = 349,221.78 × 145,623.99 - Step 4: Simplify right side
253,071.30x = 50,855,068,998.50 - Step 5: Solve for x
x = 50,855,068,998.50/253,071.30 - Step 6: Final answer
x = 200,951.55
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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.