Finding the Fourth Proportional to 251,426.54, 346,981.09 and 155,963.99
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Solution
The fourth proportional to 251,426.54, 346,981.09 and 155,963.99 is: 215,238.04
Step by Step Solution
- Step 1: Write the proportion equation
251,426.54 : 346,981.09 = 155,963.99 : x - Step 2: Convert to fraction form
251,426.54/346,981.09 = 155,963.99/x - Step 3: Cross multiply
251,426.54x = 346,981.09 × 155,963.99 - Step 4: Simplify right side
251,426.54x = 54,116,555,728.49 - Step 5: Solve for x
x = 54,116,555,728.49/251,426.54 - Step 6: Final answer
x = 215,238.04
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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.