Finding the Fourth Proportional to 319,971.42, 441,421.11 and 192,574.62
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Solution
The fourth proportional to 319,971.42, 441,421.11 and 192,574.62 is: 265,669.05
Step by Step Solution
- Step 1: Write the proportion equation
319,971.42 : 441,421.11 = 192,574.62 : x - Step 2: Convert to fraction form
319,971.42/441,421.11 = 192,574.62/x - Step 3: Cross multiply
319,971.42x = 441,421.11 × 192,574.62 - Step 4: Simplify right side
319,971.42x = 85,006,502,518.23 - Step 5: Solve for x
x = 85,006,502,518.23/319,971.42 - Step 6: Final answer
x = 265,669.05
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1.5x scale
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.