Finding the Fourth Proportional to 445,451.19, 668,275.07 and 129,932.79
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Solution
The fourth proportional to 445,451.19, 668,275.07 and 129,932.79 is: 194,927.85
Step by Step Solution
- Step 1: Write the proportion equation
445,451.19 : 668,275.07 = 129,932.79 : x - Step 2: Convert to fraction form
445,451.19/668,275.07 = 129,932.79/x - Step 3: Cross multiply
445,451.19x = 668,275.07 × 129,932.79 - Step 4: Simplify right side
445,451.19x = 86,830,844,332.55 - Step 5: Solve for x
x = 86,830,844,332.55/445,451.19 - Step 6: Final answer
x = 194,927.85
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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.