Finding the Fourth Proportional to 319,386.74, 478,083.62 and 235,241.91
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Solution
The fourth proportional to 319,386.74, 478,083.62 and 235,241.91 is: 352,128.92
Step by Step Solution
- Step 1: Write the proportion equation
319,386.74 : 478,083.62 = 235,241.91 : x - Step 2: Convert to fraction form
319,386.74/478,083.62 = 235,241.91/x - Step 3: Cross multiply
319,386.74x = 478,083.62 × 235,241.91 - Step 4: Simplify right side
319,386.74x = 112,465,304,496.62 - Step 5: Solve for x
x = 112,465,304,496.62/319,386.74 - Step 6: Final answer
x = 352,128.92
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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.