Finding the Fourth Proportional to 306,024.35, 422,501.75 and 197,316.44
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Solution
The fourth proportional to 306,024.35, 422,501.75 and 197,316.44 is: 272,417.99
Step by Step Solution
- Step 1: Write the proportion equation
306,024.35 : 422,501.75 = 197,316.44 : x - Step 2: Convert to fraction form
306,024.35/422,501.75 = 197,316.44/x - Step 3: Cross multiply
306,024.35x = 422,501.75 × 197,316.44 - Step 4: Simplify right side
306,024.35x = 83,366,538,982.83 - Step 5: Solve for x
x = 83,366,538,982.83/306,024.35 - Step 6: Final answer
x = 272,417.99
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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.