Finding the Fourth Proportional to 288,306.65, 397,860.80 and 157,484.41
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Solution
The fourth proportional to 288,306.65, 397,860.80 and 157,484.41 is: 217,327.19
Step by Step Solution
- Step 1: Write the proportion equation
288,306.65 : 397,860.80 = 157,484.41 : x - Step 2: Convert to fraction form
288,306.65/397,860.80 = 157,484.41/x - Step 3: Cross multiply
288,306.65x = 397,860.80 × 157,484.41 - Step 4: Simplify right side
288,306.65x = 62,656,873,350.13 - Step 5: Solve for x
x = 62,656,873,350.13/288,306.65 - Step 6: Final answer
x = 217,327.19
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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.