Finding the Fourth Proportional to 240,456.18, 361,338.54 and 128,215.68
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Solution
The fourth proportional to 240,456.18, 361,338.54 and 128,215.68 is: 192,672.39
Step by Step Solution
- Step 1: Write the proportion equation
240,456.18 : 361,338.54 = 128,215.68 : x - Step 2: Convert to fraction form
240,456.18/361,338.54 = 128,215.68/x - Step 3: Cross multiply
240,456.18x = 361,338.54 × 128,215.68 - Step 4: Simplify right side
240,456.18x = 46,329,266,616.31 - Step 5: Solve for x
x = 46,329,266,616.31/240,456.18 - Step 6: Final answer
x = 192,672.39
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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.