Finding the Fourth Proportional to 391,140.24, 539,754.84 and 240,208.08
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Solution
The fourth proportional to 391,140.24, 539,754.84 and 240,208.08 is: 331,475.67
Step by Step Solution
- Step 1: Write the proportion equation
391,140.24 : 539,754.84 = 240,208.08 : x - Step 2: Convert to fraction form
391,140.24/539,754.84 = 240,208.08/x - Step 3: Cross multiply
391,140.24x = 539,754.84 × 240,208.08 - Step 4: Simplify right side
391,140.24x = 129,653,473,787.11 - Step 5: Solve for x
x = 129,653,473,787.11/391,140.24 - Step 6: Final answer
x = 331,475.67
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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.