Finding the Fourth Proportional to 403,953.12, 557,447.58 and 220,193.28
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Solution
The fourth proportional to 403,953.12, 557,447.58 and 220,193.28 is: 303,862.52
Step by Step Solution
- Step 1: Write the proportion equation
403,953.12 : 557,447.58 = 220,193.28 : x - Step 2: Convert to fraction form
403,953.12/557,447.58 = 220,193.28/x - Step 3: Cross multiply
403,953.12x = 557,447.58 × 220,193.28 - Step 4: Simplify right side
403,953.12x = 122,746,211,068.26 - Step 5: Solve for x
x = 122,746,211,068.26/403,953.12 - Step 6: Final answer
x = 303,862.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.