Finding the Fourth Proportional to 455,203.80, 682,805.70 and 155,657.70
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Solution
The fourth proportional to 455,203.80, 682,805.70 and 155,657.70 is: 233,486.55
Step by Step Solution
- Step 1: Write the proportion equation
455,203.80 : 682,805.70 = 155,657.70 : x - Step 2: Convert to fraction form
455,203.80/682,805.70 = 155,657.70/x - Step 3: Cross multiply
455,203.80x = 682,805.70 × 155,657.70 - Step 4: Simplify right side
455,203.80x = 106,283,964,808.89 - Step 5: Solve for x
x = 106,283,964,808.89/455,203.80 - Step 6: Final answer
x = 233,486.55
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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.