Finding the Fourth Proportional to 484,085.80, 726,128.70 and 147,125.80
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Solution
The fourth proportional to 484,085.80, 726,128.70 and 147,125.80 is: 220,688.70
Step by Step Solution
- Step 1: Write the proportion equation
484,085.80 : 726,128.70 = 147,125.80 : x - Step 2: Convert to fraction form
484,085.80/726,128.70 = 147,125.80/x - Step 3: Cross multiply
484,085.80x = 726,128.70 × 147,125.80 - Step 4: Simplify right side
484,085.80x = 106,832,265,890.46 - Step 5: Solve for x
x = 106,832,265,890.46/484,085.80 - Step 6: Final answer
x = 220,688.70
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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.