Finding the Fourth Proportional to 391,306.18, 586,864.76 and 163,478.68
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Solution
The fourth proportional to 391,306.18, 586,864.76 and 163,478.68 is: 245,178.54
Step by Step Solution
- Step 1: Write the proportion equation
391,306.18 : 586,864.76 = 163,478.68 : x - Step 2: Convert to fraction form
391,306.18/586,864.76 = 163,478.68/x - Step 3: Cross multiply
391,306.18x = 586,864.76 × 163,478.68 - Step 4: Simplify right side
391,306.18x = 95,939,876,303.32 - Step 5: Solve for x
x = 95,939,876,303.32/391,306.18 - Step 6: Final answer
x = 245,178.54
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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.