Finding the Fourth Proportional to 425,850.40, 638,750.36 and 159,588.64
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Solution
The fourth proportional to 425,850.40, 638,750.36 and 159,588.64 is: 239,373.50
Step by Step Solution
- Step 1: Write the proportion equation
425,850.40 : 638,750.36 = 159,588.64 : x - Step 2: Convert to fraction form
425,850.40/638,750.36 = 159,588.64/x - Step 3: Cross multiply
425,850.40x = 638,750.36 × 159,588.64 - Step 4: Simplify right side
425,850.40x = 101,937,301,251.91 - Step 5: Solve for x
x = 101,937,301,251.91/425,850.40 - Step 6: Final answer
x = 239,373.50
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1.5x scale
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.