Finding the Fourth Proportional to 258,799.74, 357,136.68 and 144,078.40
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Solution
The fourth proportional to 258,799.74, 357,136.68 and 144,078.40 is: 198,824.31
Step by Step Solution
- Step 1: Write the proportion equation
258,799.74 : 357,136.68 = 144,078.40 : x - Step 2: Convert to fraction form
258,799.74/357,136.68 = 144,078.40/x - Step 3: Cross multiply
258,799.74x = 357,136.68 × 144,078.40 - Step 4: Simplify right side
258,799.74x = 51,455,679,603.09 - Step 5: Solve for x
x = 51,455,679,603.09/258,799.74 - Step 6: Final answer
x = 198,824.31
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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.