Finding the Fourth Proportional to 292,013.88, 402,979.76 and 157,877.88
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Solution
The fourth proportional to 292,013.88, 402,979.76 and 157,877.88 is: 217,871.80
Step by Step Solution
- Step 1: Write the proportion equation
292,013.88 : 402,979.76 = 157,877.88 : x - Step 2: Convert to fraction form
292,013.88/402,979.76 = 157,877.88/x - Step 3: Cross multiply
292,013.88x = 402,979.76 × 157,877.88 - Step 4: Simplify right side
292,013.88x = 63,621,590,191.71 - Step 5: Solve for x
x = 63,621,590,191.71/292,013.88 - Step 6: Final answer
x = 217,871.80
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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.