Finding the Fourth Proportional to 425,250.70, 638,000.64 and 125,739.08
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Solution
The fourth proportional to 425,250.70, 638,000.64 and 125,739.08 is: 188,645.45
Step by Step Solution
- Step 1: Write the proportion equation
425,250.70 : 638,000.64 = 125,739.08 : x - Step 2: Convert to fraction form
425,250.70/638,000.64 = 125,739.08/x - Step 3: Cross multiply
425,250.70x = 638,000.64 × 125,739.08 - Step 4: Simplify right side
425,250.70x = 80,221,610,323.01 - Step 5: Solve for x
x = 80,221,610,323.01/425,250.70 - Step 6: Final answer
x = 188,645.45
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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.