Finding the Fourth Proportional to 314,718.24, 434,305.68 and 171,479.28
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Solution
The fourth proportional to 314,718.24, 434,305.68 and 171,479.28 is: 236,638.41
Step by Step Solution
- Step 1: Write the proportion equation
314,718.24 : 434,305.68 = 171,479.28 : x - Step 2: Convert to fraction form
314,718.24/434,305.68 = 171,479.28/x - Step 3: Cross multiply
314,718.24x = 434,305.68 × 171,479.28 - Step 4: Simplify right side
314,718.24x = 74,474,425,306.31 - Step 5: Solve for x
x = 74,474,425,306.31/314,718.24 - Step 6: Final answer
x = 236,638.41
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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.