Finding the Fourth Proportional to 230,135.02, 317,585.28 and 128,161.69
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Solution
The fourth proportional to 230,135.02, 317,585.28 and 128,161.69 is: 176,862.55
Step by Step Solution
- Step 1: Write the proportion equation
230,135.02 : 317,585.28 = 128,161.69 : x - Step 2: Convert to fraction form
230,135.02/317,585.28 = 128,161.69/x - Step 3: Cross multiply
230,135.02x = 317,585.28 × 128,161.69 - Step 4: Simplify right side
230,135.02x = 40,702,266,203.92 - Step 5: Solve for x
x = 40,702,266,203.92/230,135.02 - Step 6: Final answer
x = 176,862.55
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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.