Finding the Fourth Proportional to 319,055.24, 478,581.50 and 129,513.99
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Solution
The fourth proportional to 319,055.24, 478,581.50 and 129,513.99 is: 194,270.43
Step by Step Solution
- Step 1: Write the proportion equation
319,055.24 : 478,581.50 = 129,513.99 : x - Step 2: Convert to fraction form
319,055.24/478,581.50 = 129,513.99/x - Step 3: Cross multiply
319,055.24x = 478,581.50 × 129,513.99 - Step 4: Simplify right side
319,055.24x = 61,982,998,957.62 - Step 5: Solve for x
x = 61,982,998,957.62/319,055.24 - Step 6: Final answer
x = 194,270.43
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1.5x scale
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.