Finding the Fourth Proportional to 312,088.36, 430,681.74 and 168,848.44
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Solution
The fourth proportional to 312,088.36, 430,681.74 and 168,848.44 is: 233,010.74
Step by Step Solution
- Step 1: Write the proportion equation
312,088.36 : 430,681.74 = 168,848.44 : x - Step 2: Convert to fraction form
312,088.36/430,681.74 = 168,848.44/x - Step 3: Cross multiply
312,088.36x = 430,681.74 × 168,848.44 - Step 4: Simplify right side
312,088.36x = 72,719,939,935.49 - Step 5: Solve for x
x = 72,719,939,935.49/312,088.36 - Step 6: Final answer
x = 233,010.74
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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.