Finding the Fourth Proportional to 288,681.24, 398,381.58 and 161,354.10
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Solution
The fourth proportional to 288,681.24, 398,381.58 and 161,354.10 is: 222,669.48
Step by Step Solution
- Step 1: Write the proportion equation
288,681.24 : 398,381.58 = 161,354.10 : x - Step 2: Convert to fraction form
288,681.24/398,381.58 = 161,354.10/x - Step 3: Cross multiply
288,681.24x = 398,381.58 × 161,354.10 - Step 4: Simplify right side
288,681.24x = 64,280,501,297.48 - Step 5: Solve for x
x = 64,280,501,297.48/288,681.24 - Step 6: Final answer
x = 222,669.48
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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.