Finding the Fourth Proportional to 223,746.18, 308,775.42 and 121,777.17
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Solution
The fourth proportional to 223,746.18, 308,775.42 and 121,777.17 is: 168,055.59
Step by Step Solution
- Step 1: Write the proportion equation
223,746.18 : 308,775.42 = 121,777.17 : x - Step 2: Convert to fraction form
223,746.18/308,775.42 = 121,777.17/x - Step 3: Cross multiply
223,746.18x = 308,775.42 × 121,777.17 - Step 4: Simplify right side
223,746.18x = 37,601,796,813.16 - Step 5: Solve for x
x = 37,601,796,813.16/223,746.18 - Step 6: Final answer
x = 168,055.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.