Finding the Fourth Proportional to 211,341.39, 291,652.40 and 115,847.79
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Solution
The fourth proportional to 211,341.39, 291,652.40 and 115,847.79 is: 159,870.65
Step by Step Solution
- Step 1: Write the proportion equation
211,341.39 : 291,652.40 = 115,847.79 : x - Step 2: Convert to fraction form
211,341.39/291,652.40 = 115,847.79/x - Step 3: Cross multiply
211,341.39x = 291,652.40 × 115,847.79 - Step 4: Simplify right side
211,341.39x = 33,787,285,408.96 - Step 5: Solve for x
x = 33,787,285,408.96/211,341.39 - Step 6: Final answer
x = 159,870.65
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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.