Finding the Fourth Proportional to 355,212.68, 530,227.80 and 310,371.88
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Solution
The fourth proportional to 355,212.68, 530,227.80 and 310,371.88 is: 463,293.71
Step by Step Solution
- Step 1: Write the proportion equation
355,212.68 : 530,227.80 = 310,371.88 : x - Step 2: Convert to fraction form
355,212.68/530,227.80 = 310,371.88/x - Step 3: Cross multiply
355,212.68x = 530,227.80 × 310,371.88 - Step 4: Simplify right side
355,212.68x = 164,567,799,114.26 - Step 5: Solve for x
x = 164,567,799,114.26/355,212.68 - Step 6: Final answer
x = 463,293.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.