Finding the Fourth Proportional to 312,225.03, 430,873.70 and 168,988.14
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Solution
The fourth proportional to 312,225.03, 430,873.70 and 168,988.14 is: 233,205.34
Step by Step Solution
- Step 1: Write the proportion equation
312,225.03 : 430,873.70 = 168,988.14 : x - Step 2: Convert to fraction form
312,225.03/430,873.70 = 168,988.14/x - Step 3: Cross multiply
312,225.03x = 430,873.70 × 168,988.14 - Step 4: Simplify right side
312,225.03x = 72,812,544,292.98 - Step 5: Solve for x
x = 72,812,544,292.98/312,225.03 - Step 6: Final answer
x = 233,205.34
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1.5x scale
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.