Finding the Fourth Proportional to 399,680.13, 599,946.99 and 172,088.38
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Solution
The fourth proportional to 399,680.13, 599,946.99 and 172,088.38 is: 258,316.33
Step by Step Solution
- Step 1: Write the proportion equation
399,680.13 : 599,946.99 = 172,088.38 : x - Step 2: Convert to fraction form
399,680.13/599,946.99 = 172,088.38/x - Step 3: Cross multiply
399,680.13x = 599,946.99 × 172,088.38 - Step 4: Simplify right side
399,680.13x = 103,243,905,594.98 - Step 5: Solve for x
x = 103,243,905,594.98/399,680.13 - Step 6: Final answer
x = 258,316.33
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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.