Finding the Fourth Proportional to 230,149.71, 317,606.70 and 128,194.74
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Solution
The fourth proportional to 230,149.71, 317,606.70 and 128,194.74 is: 176,908.80
Step by Step Solution
- Step 1: Write the proportion equation
230,149.71 : 317,606.70 = 128,194.74 : x - Step 2: Convert to fraction form
230,149.71/317,606.70 = 128,194.74/x - Step 3: Cross multiply
230,149.71x = 317,606.70 × 128,194.74 - Step 4: Simplify right side
230,149.71x = 40,715,508,328.76 - Step 5: Solve for x
x = 40,715,508,328.76/230,149.71 - Step 6: Final answer
x = 176,908.80
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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.