Finding the Fourth Proportional to 352,053.10, 528,079.65 and 115,419.70
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Solution
The fourth proportional to 352,053.10, 528,079.65 and 115,419.70 is: 173,129.55
Step by Step Solution
- Step 1: Write the proportion equation
352,053.10 : 528,079.65 = 115,419.70 : x - Step 2: Convert to fraction form
352,053.10/528,079.65 = 115,419.70/x - Step 3: Cross multiply
352,053.10x = 528,079.65 × 115,419.70 - Step 4: Simplify right side
352,053.10x = 60,950,794,779.11 - Step 5: Solve for x
x = 60,950,794,779.11/352,053.10 - Step 6: Final answer
x = 173,129.55
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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.