Finding the Fourth Proportional to 147,917.70, 221,876.55 and 144,029.70
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Solution
The fourth proportional to 147,917.70, 221,876.55 and 144,029.70 is: 216,044.55
Step by Step Solution
- Step 1: Write the proportion equation
147,917.70 : 221,876.55 = 144,029.70 : x - Step 2: Convert to fraction form
147,917.70/221,876.55 = 144,029.70/x - Step 3: Cross multiply
147,917.70x = 221,876.55 × 144,029.70 - Step 4: Simplify right side
147,917.70x = 31,956,812,933.54 - Step 5: Solve for x
x = 31,956,812,933.54/147,917.70 - Step 6: Final answer
x = 216,044.55
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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.