Finding the Fourth Proportional to 238,320.04, 357,440.70 and 78,397.96
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Solution
The fourth proportional to 238,320.04, 357,440.70 and 78,397.96 is: 117,583.99
Step by Step Solution
- Step 1: Write the proportion equation
238,320.04 : 357,440.70 = 78,397.96 : x - Step 2: Convert to fraction form
238,320.04/357,440.70 = 78,397.96/x - Step 3: Cross multiply
238,320.04x = 357,440.70 × 78,397.96 - Step 4: Simplify right side
238,320.04x = 28,022,621,700.97 - Step 5: Solve for x
x = 28,022,621,700.97/238,320.04 - Step 6: Final answer
x = 117,583.99
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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.