Finding the Fourth Proportional to 284,038.36, 391,994.94 and 156,725.08
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Solution
The fourth proportional to 284,038.36, 391,994.94 and 156,725.08 is: 216,292.75
Step by Step Solution
- Step 1: Write the proportion equation
284,038.36 : 391,994.94 = 156,725.08 : x - Step 2: Convert to fraction form
284,038.36/391,994.94 = 156,725.08/x - Step 3: Cross multiply
284,038.36x = 391,994.94 × 156,725.08 - Step 4: Simplify right side
284,038.36x = 61,435,438,331.10 - Step 5: Solve for x
x = 61,435,438,331.10/284,038.36 - Step 6: Final answer
x = 216,292.75
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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.