Finding the Fourth Proportional to 291,470.10, 437,205.15 and 166,823.70
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Solution
The fourth proportional to 291,470.10, 437,205.15 and 166,823.70 is: 250,235.55
Step by Step Solution
- Step 1: Write the proportion equation
291,470.10 : 437,205.15 = 166,823.70 : x - Step 2: Convert to fraction form
291,470.10/437,205.15 = 166,823.70/x - Step 3: Cross multiply
291,470.10x = 437,205.15 × 166,823.70 - Step 4: Simplify right side
291,470.10x = 72,936,180,782.06 - Step 5: Solve for x
x = 72,936,180,782.06/291,470.10 - Step 6: Final answer
x = 250,235.55
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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.