Finding the Fourth Proportional to 368,671.90, 553,007.84 and 210,789.63
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Solution
The fourth proportional to 368,671.90, 553,007.84 and 210,789.63 is: 316,184.45
Step by Step Solution
- Step 1: Write the proportion equation
368,671.90 : 553,007.84 = 210,789.63 : x - Step 2: Convert to fraction form
368,671.90/553,007.84 = 210,789.63/x - Step 3: Cross multiply
368,671.90x = 553,007.84 × 210,789.63 - Step 4: Simplify right side
368,671.90x = 116,568,320,557.05 - Step 5: Solve for x
x = 116,568,320,557.05/368,671.90 - Step 6: Final answer
x = 316,184.45
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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.