Finding the Fourth Proportional to 343,638.24, 515,333.76 and 118,937.68
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Solution
The fourth proportional to 343,638.24, 515,333.76 and 118,937.68 is: 178,363.74
Step by Step Solution
- Step 1: Write the proportion equation
343,638.24 : 515,333.76 = 118,937.68 : x - Step 2: Convert to fraction form
343,638.24/515,333.76 = 118,937.68/x - Step 3: Cross multiply
343,638.24x = 515,333.76 × 118,937.68 - Step 4: Simplify right side
343,638.24x = 61,292,601,840.08 - Step 5: Solve for x
x = 61,292,601,840.08/343,638.24 - Step 6: Final answer
x = 178,363.74
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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.