Finding the Fourth Proportional to 408,935.12, 564,414.36 and 239,210.96
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Solution
The fourth proportional to 408,935.12, 564,414.36 and 239,210.96 is: 330,160.20
Step by Step Solution
- Step 1: Write the proportion equation
408,935.12 : 564,414.36 = 239,210.96 : x - Step 2: Convert to fraction form
408,935.12/564,414.36 = 239,210.96/x - Step 3: Cross multiply
408,935.12x = 564,414.36 × 239,210.96 - Step 4: Simplify right side
408,935.12x = 135,014,100,893.39 - Step 5: Solve for x
x = 135,014,100,893.39/408,935.12 - Step 6: Final answer
x = 330,160.20
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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.