Finding the Fourth Proportional to 159,990.84, 239,972.22 and 147,462.84
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Solution
The fourth proportional to 159,990.84, 239,972.22 and 147,462.84 is: 221,181.32
Step by Step Solution
- Step 1: Write the proportion equation
159,990.84 : 239,972.22 = 147,462.84 : x - Step 2: Convert to fraction form
159,990.84/239,972.22 = 147,462.84/x - Step 3: Cross multiply
159,990.84x = 239,972.22 × 147,462.84 - Step 4: Simplify right side
159,990.84x = 35,386,985,082.30 - Step 5: Solve for x
x = 35,386,985,082.30/159,990.84 - Step 6: Final answer
x = 221,181.32
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1.5x scale
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.