Finding the Fourth Proportional to 230,069.57, 317,493.47 and 128,092.79
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Solution
The fourth proportional to 230,069.57, 317,493.47 and 128,092.79 is: 176,766.65
Step by Step Solution
- Step 1: Write the proportion equation
230,069.57 : 317,493.47 = 128,092.79 : x - Step 2: Convert to fraction form
230,069.57/317,493.47 = 128,092.79/x - Step 3: Cross multiply
230,069.57x = 317,493.47 × 128,092.79 - Step 4: Simplify right side
230,069.57x = 40,668,625,493.05 - Step 5: Solve for x
x = 40,668,625,493.05/230,069.57 - Step 6: Final answer
x = 176,766.65
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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.