Finding the Fourth Proportional to 387,030.99, 534,085.04 and 214,959.96
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Solution
The fourth proportional to 387,030.99, 534,085.04 and 214,959.96 is: 296,634.90
Step by Step Solution
- Step 1: Write the proportion equation
387,030.99 : 534,085.04 = 214,959.96 : x - Step 2: Convert to fraction form
387,030.99/534,085.04 = 214,959.96/x - Step 3: Cross multiply
387,030.99x = 534,085.04 × 214,959.96 - Step 4: Simplify right side
387,030.99x = 114,806,899,372.40 - Step 5: Solve for x
x = 114,806,899,372.40/387,030.99 - Step 6: Final answer
x = 296,634.90
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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.