Finding the Fourth Proportional to 202,518.87, 279,320.72 and 121,862.31
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Solution
The fourth proportional to 202,518.87, 279,320.72 and 121,862.31 is: 168,076.52
Step by Step Solution
- Step 1: Write the proportion equation
202,518.87 : 279,320.72 = 121,862.31 : x - Step 2: Convert to fraction form
202,518.87/279,320.72 = 121,862.31/x - Step 3: Cross multiply
202,518.87x = 279,320.72 × 121,862.31 - Step 4: Simplify right side
202,518.87x = 34,038,667,560.75 - Step 5: Solve for x
x = 34,038,667,560.75/202,518.87 - Step 6: Final answer
x = 168,076.52
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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.