Finding the Fourth Proportional to 243,555.12, 336,065.04 and 136,126.08
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Solution
The fourth proportional to 243,555.12, 336,065.04 and 136,126.08 is: 187,831.06
Step by Step Solution
- Step 1: Write the proportion equation
243,555.12 : 336,065.04 = 136,126.08 : x - Step 2: Convert to fraction form
243,555.12/336,065.04 = 136,126.08/x - Step 3: Cross multiply
243,555.12x = 336,065.04 × 136,126.08 - Step 4: Simplify right side
243,555.12x = 45,747,216,520.24 - Step 5: Solve for x
x = 45,747,216,520.24/243,555.12 - Step 6: Final answer
x = 187,831.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.