Finding the Fourth Proportional to 402,493.91, 554,856.33 and 281,258.93
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Solution
The fourth proportional to 402,493.91, 554,856.33 and 281,258.93 is: 387,728.35
Step by Step Solution
- Step 1: Write the proportion equation
402,493.91 : 554,856.33 = 281,258.93 : x - Step 2: Convert to fraction form
402,493.91/554,856.33 = 281,258.93/x - Step 3: Cross multiply
402,493.91x = 554,856.33 × 281,258.93 - Step 4: Simplify right side
402,493.91x = 156,058,298,539.31 - Step 5: Solve for x
x = 156,058,298,539.31/402,493.91 - Step 6: Final answer
x = 387,728.35
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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.