Finding the Fourth Proportional to 299,243.70, 448,865.55 and 133,031.70
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Solution
The fourth proportional to 299,243.70, 448,865.55 and 133,031.70 is: 199,547.55
Step by Step Solution
- Step 1: Write the proportion equation
299,243.70 : 448,865.55 = 133,031.70 : x - Step 2: Convert to fraction form
299,243.70/448,865.55 = 133,031.70/x - Step 3: Cross multiply
299,243.70x = 448,865.55 × 133,031.70 - Step 4: Simplify right side
299,243.70x = 59,713,347,187.94 - Step 5: Solve for x
x = 59,713,347,187.94/299,243.70 - Step 6: Final answer
x = 199,547.55
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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.