Finding the Fourth Proportional to 425,454.98, 638,215.27 and 125,930.75
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Solution
The fourth proportional to 425,454.98, 638,215.27 and 125,930.75 is: 188,905.83
Step by Step Solution
- Step 1: Write the proportion equation
425,454.98 : 638,215.27 = 125,930.75 : x - Step 2: Convert to fraction form
425,454.98/638,215.27 = 125,930.75/x - Step 3: Cross multiply
425,454.98x = 638,215.27 × 125,930.75 - Step 4: Simplify right side
425,454.98x = 80,370,924,106.65 - Step 5: Solve for x
x = 80,370,924,106.65/425,454.98 - Step 6: Final answer
x = 188,905.83
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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.