Finding the Fourth Proportional to 239,657.08, 359,485.74 and 81,887.08
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Solution
The fourth proportional to 239,657.08, 359,485.74 and 81,887.08 is: 122,830.66
Step by Step Solution
- Step 1: Write the proportion equation
239,657.08 : 359,485.74 = 81,887.08 : x - Step 2: Convert to fraction form
239,657.08/359,485.74 = 81,887.08/x - Step 3: Cross multiply
239,657.08x = 359,485.74 × 81,887.08 - Step 4: Simplify right side
239,657.08x = 29,437,237,550.24 - Step 5: Solve for x
x = 29,437,237,550.24/239,657.08 - Step 6: Final answer
x = 122,830.66
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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.