Finding the Fourth Proportional to 312,088.26, 430,681.64 and 176,150.71
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Solution
The fourth proportional to 312,088.26, 430,681.64 and 176,150.71 is: 243,087.90
Step by Step Solution
- Step 1: Write the proportion equation
312,088.26 : 430,681.64 = 176,150.71 : x - Step 2: Convert to fraction form
312,088.26/430,681.64 = 176,150.71/x - Step 3: Cross multiply
312,088.26x = 430,681.64 × 176,150.71 - Step 4: Simplify right side
312,088.26x = 75,864,878,187.05 - Step 5: Solve for x
x = 75,864,878,187.05/312,088.26 - Step 6: Final answer
x = 243,087.90
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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.