Finding the Fourth Proportional to 438,730.99, 657,965.70 and 186,007.42
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Solution
The fourth proportional to 438,730.99, 657,965.70 and 186,007.42 is: 278,955.68
Step by Step Solution
- Step 1: Write the proportion equation
438,730.99 : 657,965.70 = 186,007.42 : x - Step 2: Convert to fraction form
438,730.99/657,965.70 = 186,007.42/x - Step 3: Cross multiply
438,730.99x = 657,965.70 × 186,007.42 - Step 4: Simplify right side
438,730.99x = 122,386,502,305.49 - Step 5: Solve for x
x = 122,386,502,305.49/438,730.99 - Step 6: Final answer
x = 278,955.68
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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.