Finding the Fourth Proportional to 185,959.50, 256,614.27 and 105,387.99
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Solution
The fourth proportional to 185,959.50, 256,614.27 and 105,387.99 is: 145,429.85
Step by Step Solution
- Step 1: Write the proportion equation
185,959.50 : 256,614.27 = 105,387.99 : x - Step 2: Convert to fraction form
185,959.50/256,614.27 = 105,387.99/x - Step 3: Cross multiply
185,959.50x = 256,614.27 × 105,387.99 - Step 4: Simplify right side
185,959.50x = 27,044,063,025.62 - Step 5: Solve for x
x = 27,044,063,025.62/185,959.50 - Step 6: Final answer
x = 145,429.85
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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.