Finding the Fourth Proportional to 329,223.12, 493,831.08 and 79,905.12
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Solution
The fourth proportional to 329,223.12, 493,831.08 and 79,905.12 is: 119,856.81
Step by Step Solution
- Step 1: Write the proportion equation
329,223.12 : 493,831.08 = 79,905.12 : x - Step 2: Convert to fraction form
329,223.12/493,831.08 = 79,905.12/x - Step 3: Cross multiply
329,223.12x = 493,831.08 × 79,905.12 - Step 4: Simplify right side
329,223.12x = 39,459,631,707.13 - Step 5: Solve for x
x = 39,459,631,707.13/329,223.12 - Step 6: Final answer
x = 119,856.81
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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.