Finding the Fourth Proportional to 211,320.96, 291,630.15 and 115,827.63
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Solution
The fourth proportional to 211,320.96, 291,630.15 and 115,827.63 is: 159,846.09
Step by Step Solution
- Step 1: Write the proportion equation
211,320.96 : 291,630.15 = 115,827.63 : x - Step 2: Convert to fraction form
211,320.96/291,630.15 = 115,827.63/x - Step 3: Cross multiply
211,320.96x = 291,630.15 × 115,827.63 - Step 4: Simplify right side
211,320.96x = 33,778,829,111.04 - Step 5: Solve for x
x = 33,778,829,111.04/211,320.96 - Step 6: Final answer
x = 159,846.09
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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.