Finding the Fourth Proportional to 291,750.40, 438,281.70 and 280,596.70
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Solution
The fourth proportional to 291,750.40, 438,281.70 and 280,596.70 is: 421,526.07
Step by Step Solution
- Step 1: Write the proportion equation
291,750.40 : 438,281.70 = 280,596.70 : x - Step 2: Convert to fraction form
291,750.40/438,281.70 = 280,596.70/x - Step 3: Cross multiply
291,750.40x = 438,281.70 × 280,596.70 - Step 4: Simplify right side
291,750.40x = 122,980,398,690.39 - Step 5: Solve for x
x = 122,980,398,690.39/291,750.40 - Step 6: Final answer
x = 421,526.07
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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.