Finding the Fourth Proportional to 145,252.80, 217,879.20 and 121,924.80
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Solution
The fourth proportional to 145,252.80, 217,879.20 and 121,924.80 is: 182,887.20
Step by Step Solution
- Step 1: Write the proportion equation
145,252.80 : 217,879.20 = 121,924.80 : x - Step 2: Convert to fraction form
145,252.80/217,879.20 = 121,924.80/x - Step 3: Cross multiply
145,252.80x = 217,879.20 × 121,924.80 - Step 4: Simplify right side
145,252.80x = 26,564,877,884.16 - Step 5: Solve for x
x = 26,564,877,884.16/145,252.80 - Step 6: Final answer
x = 182,887.20
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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.