Finding the Fourth Proportional to 348,029.40, 521,622.90 and 147,929.70
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Solution
The fourth proportional to 348,029.40, 521,622.90 and 147,929.70 is: 221,715.52
Step by Step Solution
- Step 1: Write the proportion equation
348,029.40 : 521,622.90 = 147,929.70 : x - Step 2: Convert to fraction form
348,029.40/521,622.90 = 147,929.70/x - Step 3: Cross multiply
348,029.40x = 521,622.90 × 147,929.70 - Step 4: Simplify right side
348,029.40x = 77,163,519,110.13 - Step 5: Solve for x
x = 77,163,519,110.13/348,029.40 - Step 6: Final answer
x = 221,715.52
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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.