Finding the Fourth Proportional to 425,831.20, 638,455.20 and 201,299.20
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Solution
The fourth proportional to 425,831.20, 638,455.20 and 201,299.20 is: 301,810.95
Step by Step Solution
- Step 1: Write the proportion equation
425,831.20 : 638,455.20 = 201,299.20 : x - Step 2: Convert to fraction form
425,831.20/638,455.20 = 201,299.20/x - Step 3: Cross multiply
425,831.20x = 638,455.20 × 201,299.20 - Step 4: Simplify right side
425,831.20x = 128,520,520,995.84 - Step 5: Solve for x
x = 128,520,520,995.84/425,831.20 - Step 6: Final answer
x = 301,810.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.