Finding the Fourth Proportional to 258,434.18, 387,646.40 and 140,853.76
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Solution
The fourth proportional to 258,434.18, 387,646.40 and 140,853.76 is: 211,277.99
Step by Step Solution
- Step 1: Write the proportion equation
258,434.18 : 387,646.40 = 140,853.76 : x - Step 2: Convert to fraction form
258,434.18/387,646.40 = 140,853.76/x - Step 3: Cross multiply
258,434.18x = 387,646.40 × 140,853.76 - Step 4: Simplify right side
258,434.18x = 54,601,452,990.46 - Step 5: Solve for x
x = 54,601,452,990.46/258,434.18 - Step 6: Final answer
x = 211,277.99
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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.