Finding the Fourth Proportional to 278,827.64, 418,006.35 and 120,937.18
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Solution
The fourth proportional to 278,827.64, 418,006.35 and 120,937.18 is: 181,303.79
Step by Step Solution
- Step 1: Write the proportion equation
278,827.64 : 418,006.35 = 120,937.18 : x - Step 2: Convert to fraction form
278,827.64/418,006.35 = 120,937.18/x - Step 3: Cross multiply
278,827.64x = 418,006.35 × 120,937.18 - Step 4: Simplify right side
278,827.64x = 50,552,509,191.09 - Step 5: Solve for x
x = 50,552,509,191.09/278,827.64 - Step 6: Final answer
x = 181,303.79
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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.