Finding the Fourth Proportional to 282,084.74, 423,197.16 and 139,996.70
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Solution
The fourth proportional to 282,084.74, 423,197.16 and 139,996.70 is: 210,029.82
Step by Step Solution
- Step 1: Write the proportion equation
282,084.74 : 423,197.16 = 139,996.70 : x - Step 2: Convert to fraction form
282,084.74/423,197.16 = 139,996.70/x - Step 3: Cross multiply
282,084.74x = 423,197.16 × 139,996.70 - Step 4: Simplify right side
282,084.74x = 59,246,205,849.37 - Step 5: Solve for x
x = 59,246,205,849.37/282,084.74 - Step 6: Final answer
x = 210,029.82
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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.