Finding the Fourth Proportional to 361,512.81, 542,345.08 and 108,811.79
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Solution
The fourth proportional to 361,512.81, 542,345.08 and 108,811.79 is: 163,240.52
Step by Step Solution
- Step 1: Write the proportion equation
361,512.81 : 542,345.08 = 108,811.79 : x - Step 2: Convert to fraction form
361,512.81/542,345.08 = 108,811.79/x - Step 3: Cross multiply
361,512.81x = 542,345.08 × 108,811.79 - Step 4: Simplify right side
361,512.81x = 59,013,538,952.49 - Step 5: Solve for x
x = 59,013,538,952.49/361,512.81 - Step 6: Final answer
x = 163,240.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.