Finding the Fourth Proportional to 261,462.92, 392,097.10 and 103,638.92
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Solution
The fourth proportional to 261,462.92, 392,097.10 and 103,638.92 is: 155,419.82
Step by Step Solution
- Step 1: Write the proportion equation
261,462.92 : 392,097.10 = 103,638.92 : x - Step 2: Convert to fraction form
261,462.92/392,097.10 = 103,638.92/x - Step 3: Cross multiply
261,462.92x = 392,097.10 × 103,638.92 - Step 4: Simplify right side
261,462.92x = 40,636,519,979.13 - Step 5: Solve for x
x = 40,636,519,979.13/261,462.92 - Step 6: Final answer
x = 155,419.82
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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.