Finding the Fourth Proportional to 346,431.24, 478,065.84 and 193,465.20
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Solution
The fourth proportional to 346,431.24, 478,065.84 and 193,465.20 is: 266,976.80
Step by Step Solution
- Step 1: Write the proportion equation
346,431.24 : 478,065.84 = 193,465.20 : x - Step 2: Convert to fraction form
346,431.24/478,065.84 = 193,465.20/x - Step 3: Cross multiply
346,431.24x = 478,065.84 × 193,465.20 - Step 4: Simplify right side
346,431.24x = 92,489,103,348.77 - Step 5: Solve for x
x = 92,489,103,348.77/346,431.24 - Step 6: Final answer
x = 266,976.80
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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.