Finding the Fourth Proportional to 286,975.92, 396,030.35 and 157,929.24
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Solution
The fourth proportional to 286,975.92, 396,030.35 and 157,929.24 is: 217,944.32
Step by Step Solution
- Step 1: Write the proportion equation
286,975.92 : 396,030.35 = 157,929.24 : x - Step 2: Convert to fraction form
286,975.92/396,030.35 = 157,929.24/x - Step 3: Cross multiply
286,975.92x = 396,030.35 × 157,929.24 - Step 4: Simplify right side
286,975.92x = 62,544,772,587.26 - Step 5: Solve for x
x = 62,544,772,587.26/286,975.92 - Step 6: Final answer
x = 217,944.32
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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.