Finding the Fourth Proportional to 309,317.99, 426,838.61 and 181,968.98
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Solution
The fourth proportional to 309,317.99, 426,838.61 and 181,968.98 is: 251,105.30
Step by Step Solution
- Step 1: Write the proportion equation
309,317.99 : 426,838.61 = 181,968.98 : x - Step 2: Convert to fraction form
309,317.99/426,838.61 = 181,968.98/x - Step 3: Cross multiply
309,317.99x = 426,838.61 × 181,968.98 - Step 4: Simplify right side
309,317.99x = 77,671,384,807.05 - Step 5: Solve for x
x = 77,671,384,807.05/309,317.99 - Step 6: Final answer
x = 251,105.30
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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.