Finding the Fourth Proportional to 328,786.16, 453,725.08 and 228,242.48
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Solution
The fourth proportional to 328,786.16, 453,725.08 and 228,242.48 is: 314,974.75
Step by Step Solution
- Step 1: Write the proportion equation
328,786.16 : 453,725.08 = 228,242.48 : x - Step 2: Convert to fraction form
328,786.16/453,725.08 = 228,242.48/x - Step 3: Cross multiply
328,786.16x = 453,725.08 × 228,242.48 - Step 4: Simplify right side
328,786.16x = 103,559,337,497.40 - Step 5: Solve for x
x = 103,559,337,497.40/328,786.16 - Step 6: Final answer
x = 314,974.75
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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.