Finding the Fourth Proportional to 399,679.88, 599,946.62 and 172,088.12
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Solution
The fourth proportional to 399,679.88, 599,946.62 and 172,088.12 is: 258,315.95
Step by Step Solution
- Step 1: Write the proportion equation
399,679.88 : 599,946.62 = 172,088.12 : x - Step 2: Convert to fraction form
399,679.88/599,946.62 = 172,088.12/x - Step 3: Cross multiply
399,679.88x = 599,946.62 × 172,088.12 - Step 4: Simplify right side
399,679.88x = 103,243,686,575.58 - Step 5: Solve for x
x = 103,243,686,575.58/399,679.88 - Step 6: Final answer
x = 258,315.95
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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.