Finding the Fourth Proportional to 217,032.16, 299,431.52 and 126,368.70
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Solution
The fourth proportional to 217,032.16, 299,431.52 and 126,368.70 is: 174,346.38
Step by Step Solution
- Step 1: Write the proportion equation
217,032.16 : 299,431.52 = 126,368.70 : x - Step 2: Convert to fraction form
217,032.16/299,431.52 = 126,368.70/x - Step 3: Cross multiply
217,032.16x = 299,431.52 × 126,368.70 - Step 4: Simplify right side
217,032.16x = 37,838,771,289.58 - Step 5: Solve for x
x = 37,838,771,289.58/217,032.16 - Step 6: Final answer
x = 174,346.38
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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.