Finding the Fourth Proportional to 304,963.99, 420,866.49 and 169,012.78
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Solution
The fourth proportional to 304,963.99, 420,866.49 and 169,012.78 is: 233,246.61
Step by Step Solution
- Step 1: Write the proportion equation
304,963.99 : 420,866.49 = 169,012.78 : x - Step 2: Convert to fraction form
304,963.99/420,866.49 = 169,012.78/x - Step 3: Cross multiply
304,963.99x = 420,866.49 × 169,012.78 - Step 4: Simplify right side
304,963.99x = 71,131,815,483.74 - Step 5: Solve for x
x = 71,131,815,483.74/304,963.99 - Step 6: Final answer
x = 233,246.61
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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.