Finding the Fourth Proportional to 257,853.70, 356,646.81 and 228,045.70
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Solution
The fourth proportional to 257,853.70, 356,646.81 and 228,045.70 is: 315,418.28
Step by Step Solution
- Step 1: Write the proportion equation
257,853.70 : 356,646.81 = 228,045.70 : x - Step 2: Convert to fraction form
257,853.70/356,646.81 = 228,045.70/x - Step 3: Cross multiply
257,853.70x = 356,646.81 × 228,045.70 - Step 4: Simplify right side
257,853.70x = 81,331,771,439.22 - Step 5: Solve for x
x = 81,331,771,439.22/257,853.70 - Step 6: Final answer
x = 315,418.28
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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.