Finding the Fourth Proportional to 438,649.80, 657,974.70 and 106,225.80
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Solution
The fourth proportional to 438,649.80, 657,974.70 and 106,225.80 is: 159,338.70
Step by Step Solution
- Step 1: Write the proportion equation
438,649.80 : 657,974.70 = 106,225.80 : x - Step 2: Convert to fraction form
438,649.80/657,974.70 = 106,225.80/x - Step 3: Cross multiply
438,649.80x = 657,974.70 × 106,225.80 - Step 4: Simplify right side
438,649.80x = 69,893,888,887.26 - Step 5: Solve for x
x = 69,893,888,887.26/438,649.80 - Step 6: Final answer
x = 159,338.70
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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.