Finding the Fourth Proportional to 230,130.24, 317,542.64 and 128,154.48
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Solution
The fourth proportional to 230,130.24, 317,542.64 and 128,154.48 is: 176,832.53
Step by Step Solution
- Step 1: Write the proportion equation
230,130.24 : 317,542.64 = 128,154.48 : x - Step 2: Convert to fraction form
230,130.24/317,542.64 = 128,154.48/x - Step 3: Cross multiply
230,130.24x = 317,542.64 × 128,154.48 - Step 4: Simplify right side
230,130.24x = 40,694,511,907.03 - Step 5: Solve for x
x = 40,694,511,907.03/230,130.24 - Step 6: Final answer
x = 176,832.53
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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.