Finding the Fourth Proportional to 330,078.24, 455,582.88 and 209,386.08
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Solution
The fourth proportional to 330,078.24, 455,582.88 and 209,386.08 is: 289,000.31
Step by Step Solution
- Step 1: Write the proportion equation
330,078.24 : 455,582.88 = 209,386.08 : x - Step 2: Convert to fraction form
330,078.24/455,582.88 = 209,386.08/x - Step 3: Cross multiply
330,078.24x = 455,582.88 × 209,386.08 - Step 4: Simplify right side
330,078.24x = 95,392,713,358.31 - Step 5: Solve for x
x = 95,392,713,358.31/330,078.24 - Step 6: Final answer
x = 289,000.31
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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.