Finding the Fourth Proportional to 153,683.08, 229,322.65 and 121,731.08
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Solution
The fourth proportional to 153,683.08, 229,322.65 and 121,731.08 is: 181,644.55
Step by Step Solution
- Step 1: Write the proportion equation
153,683.08 : 229,322.65 = 121,731.08 : x - Step 2: Convert to fraction form
153,683.08/229,322.65 = 121,731.08/x - Step 3: Cross multiply
153,683.08x = 229,322.65 × 121,731.08 - Step 4: Simplify right side
153,683.08x = 27,915,693,852.96 - Step 5: Solve for x
x = 27,915,693,852.96/153,683.08 - Step 6: Final answer
x = 181,644.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.