Finding the Fourth Proportional to 329,446.98, 493,831.08 and 129,686.40
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Solution
The fourth proportional to 329,446.98, 493,831.08 and 129,686.40 is: 194,396.00
Step by Step Solution
- Step 1: Write the proportion equation
329,446.98 : 493,831.08 = 129,686.40 : x - Step 2: Convert to fraction form
329,446.98/493,831.08 = 129,686.40/x - Step 3: Cross multiply
329,446.98x = 493,831.08 × 129,686.40 - Step 4: Simplify right side
329,446.98x = 64,043,174,973.31 - Step 5: Solve for x
x = 64,043,174,973.31/329,446.98 - Step 6: Final answer
x = 194,396.00
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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.