Finding the Fourth Proportional to 377,780.84, 521,339.46 and 216,641.96
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Solution
The fourth proportional to 377,780.84, 521,339.46 and 216,641.96 is: 298,966.99
Step by Step Solution
- Step 1: Write the proportion equation
377,780.84 : 521,339.46 = 216,641.96 : x - Step 2: Convert to fraction form
377,780.84/521,339.46 = 216,641.96/x - Step 3: Cross multiply
377,780.84x = 521,339.46 × 216,641.96 - Step 4: Simplify right side
377,780.84x = 112,944,002,439.74 - Step 5: Solve for x
x = 112,944,002,439.74/377,780.84 - Step 6: Final answer
x = 298,966.99
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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.