Finding the Fourth Proportional to 292,211.40, 438,014.70 and 158,809.80
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Solution
The fourth proportional to 292,211.40, 438,014.70 and 158,809.80 is: 238,050.35
Step by Step Solution
- Step 1: Write the proportion equation
292,211.40 : 438,014.70 = 158,809.80 : x - Step 2: Convert to fraction form
292,211.40/438,014.70 = 158,809.80/x - Step 3: Cross multiply
292,211.40x = 438,014.70 × 158,809.80 - Step 4: Simplify right side
292,211.40x = 69,561,026,904.06 - Step 5: Solve for x
x = 69,561,026,904.06/292,211.40 - Step 6: Final answer
x = 238,050.35
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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.