Finding the Fourth Proportional to 371,979.84, 513,335.16 and 202,213.56
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Solution
The fourth proportional to 371,979.84, 513,335.16 and 202,213.56 is: 279,056.33
Step by Step Solution
- Step 1: Write the proportion equation
371,979.84 : 513,335.16 = 202,213.56 : x - Step 2: Convert to fraction form
371,979.84/513,335.16 = 202,213.56/x - Step 3: Cross multiply
371,979.84x = 513,335.16 × 202,213.56 - Step 4: Simplify right side
371,979.84x = 103,803,330,176.77 - Step 5: Solve for x
x = 103,803,330,176.77/371,979.84 - Step 6: Final answer
x = 279,056.33
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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.