Finding the Fourth Proportional to 391,432.74, 540,167.97 and 230,298.18
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Solution
The fourth proportional to 391,432.74, 540,167.97 and 230,298.18 is: 317,806.07
Step by Step Solution
- Step 1: Write the proportion equation
391,432.74 : 540,167.97 = 230,298.18 : x - Step 2: Convert to fraction form
391,432.74/540,167.97 = 230,298.18/x - Step 3: Cross multiply
391,432.74x = 540,167.97 × 230,298.18 - Step 4: Simplify right side
391,432.74x = 124,399,700,385.30 - Step 5: Solve for x
x = 124,399,700,385.30/391,432.74 - Step 6: Final answer
x = 317,806.07
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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.