Finding the Fourth Proportional to 230,186.52, 317,637.18 and 128,204.28
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Solution
The fourth proportional to 230,186.52, 317,637.18 and 128,204.28 is: 176,910.65
Step by Step Solution
- Step 1: Write the proportion equation
230,186.52 : 317,637.18 = 128,204.28 : x - Step 2: Convert to fraction form
230,186.52/317,637.18 = 128,204.28/x - Step 3: Cross multiply
230,186.52x = 317,637.18 × 128,204.28 - Step 4: Simplify right side
230,186.52x = 40,722,445,963.13 - Step 5: Solve for x
x = 40,722,445,963.13/230,186.52 - Step 6: Final answer
x = 176,910.65
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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.