Finding the Fourth Proportional to 230,541.17, 318,146.18 and 128,566.74
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Solution
The fourth proportional to 230,541.17, 318,146.18 and 128,566.74 is: 177,421.75
Step by Step Solution
- Step 1: Write the proportion equation
230,541.17 : 318,146.18 = 128,566.74 : x - Step 2: Convert to fraction form
230,541.17/318,146.18 = 128,566.74/x - Step 3: Cross multiply
230,541.17x = 318,146.18 × 128,566.74 - Step 4: Simplify right side
230,541.17x = 40,903,016,563.22 - Step 5: Solve for x
x = 40,903,016,563.22/230,541.17 - Step 6: Final answer
x = 177,421.75
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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.