Finding the Fourth Proportional to 420,535.11, 580,318.18 and 239,229.98
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Solution
The fourth proportional to 420,535.11, 580,318.18 and 239,229.98 is: 330,125.84
Step by Step Solution
- Step 1: Write the proportion equation
420,535.11 : 580,318.18 = 239,229.98 : x - Step 2: Convert to fraction form
420,535.11/580,318.18 = 239,229.98/x - Step 3: Cross multiply
420,535.11x = 580,318.18 × 239,229.98 - Step 4: Simplify right side
420,535.11x = 138,829,506,595.04 - Step 5: Solve for x
x = 138,829,506,595.04/420,535.11 - Step 6: Final answer
x = 330,125.84
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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.