Finding the Fourth Proportional to 353,156.94, 530,068.26 and 128,734.26
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Solution
The fourth proportional to 353,156.94, 530,068.26 and 128,734.26 is: 193,222.72
Step by Step Solution
- Step 1: Write the proportion equation
353,156.94 : 530,068.26 = 128,734.26 : x - Step 2: Convert to fraction form
353,156.94/530,068.26 = 128,734.26/x - Step 3: Cross multiply
353,156.94x = 530,068.26 × 128,734.26 - Step 4: Simplify right side
353,156.94x = 68,237,945,200.59 - Step 5: Solve for x
x = 68,237,945,200.59/353,156.94 - Step 6: Final answer
x = 193,222.72
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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.