Finding the Fourth Proportional to 312,177.48, 430,806.01 and 168,937.49
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Solution
The fourth proportional to 312,177.48, 430,806.01 and 168,937.49 is: 233,134.32
Step by Step Solution
- Step 1: Write the proportion equation
312,177.48 : 430,806.01 = 168,937.49 : x - Step 2: Convert to fraction form
312,177.48/430,806.01 = 168,937.49/x - Step 3: Cross multiply
312,177.48x = 430,806.01 × 168,937.49 - Step 4: Simplify right side
312,177.48x = 72,779,283,852.28 - Step 5: Solve for x
x = 72,779,283,852.28/312,177.48 - Step 6: Final answer
x = 233,134.32
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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.