Finding the Fourth Proportional to 393,117.74, 589,562.58 and 153,178.12
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Solution
The fourth proportional to 393,117.74, 589,562.58 and 153,178.12 is: 229,722.75
Step by Step Solution
- Step 1: Write the proportion equation
393,117.74 : 589,562.58 = 153,178.12 : x - Step 2: Convert to fraction form
393,117.74/589,562.58 = 153,178.12/x - Step 3: Cross multiply
393,117.74x = 589,562.58 × 153,178.12 - Step 4: Simplify right side
393,117.74x = 90,308,087,626.75 - Step 5: Solve for x
x = 90,308,087,626.75/393,117.74 - Step 6: Final answer
x = 229,722.75
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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.