Finding the Fourth Proportional to 445,502.88, 668,314.80 and 129,957.12
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Solution
The fourth proportional to 445,502.88, 668,314.80 and 129,957.12 is: 194,953.32
Step by Step Solution
- Step 1: Write the proportion equation
445,502.88 : 668,314.80 = 129,957.12 : x - Step 2: Convert to fraction form
445,502.88/668,314.80 = 129,957.12/x - Step 3: Cross multiply
445,502.88x = 668,314.80 × 129,957.12 - Step 4: Simplify right side
445,502.88x = 86,852,266,661.38 - Step 5: Solve for x
x = 86,852,266,661.38/445,502.88 - Step 6: Final answer
x = 194,953.32
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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.