Finding the Fourth Proportional to 258,479.28, 356,733.54 and 145,302.12
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Solution
The fourth proportional to 258,479.28, 356,733.54 and 145,302.12 is: 200,534.99
Step by Step Solution
- Step 1: Write the proportion equation
258,479.28 : 356,733.54 = 145,302.12 : x - Step 2: Convert to fraction form
258,479.28/356,733.54 = 145,302.12/x - Step 3: Cross multiply
258,479.28x = 356,733.54 × 145,302.12 - Step 4: Simplify right side
258,479.28x = 51,834,139,637.10 - Step 5: Solve for x
x = 51,834,139,637.10/258,479.28 - Step 6: Final answer
x = 200,534.99
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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.