Finding the Fourth Proportional to 211,023.84, 291,201.84 and 115,512.24
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Solution
The fourth proportional to 211,023.84, 291,201.84 and 115,512.24 is: 159,400.84
Step by Step Solution
- Step 1: Write the proportion equation
211,023.84 : 291,201.84 = 115,512.24 : x - Step 2: Convert to fraction form
211,023.84/291,201.84 = 115,512.24/x - Step 3: Cross multiply
211,023.84x = 291,201.84 × 115,512.24 - Step 4: Simplify right side
211,023.84x = 33,637,376,830.52 - Step 5: Solve for x
x = 33,637,376,830.52/211,023.84 - Step 6: Final answer
x = 159,400.84
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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.