Finding the Fourth Proportional to 420,262.99, 579,960.14 and 238,974.93
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Solution
The fourth proportional to 420,262.99, 579,960.14 and 238,974.93 is: 329,783.82
Step by Step Solution
- Step 1: Write the proportion equation
420,262.99 : 579,960.14 = 238,974.93 : x - Step 2: Convert to fraction form
420,262.99/579,960.14 = 238,974.93/x - Step 3: Cross multiply
420,262.99x = 579,960.14 × 238,974.93 - Step 4: Simplify right side
420,262.99x = 138,595,932,664.42 - Step 5: Solve for x
x = 138,595,932,664.42/420,262.99 - Step 6: Final answer
x = 329,783.82
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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.