Finding the Fourth Proportional to 292,557.70, 403,729.50 and 158,421.70
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Solution
The fourth proportional to 292,557.70, 403,729.50 and 158,421.70 is: 218,621.88
Step by Step Solution
- Step 1: Write the proportion equation
292,557.70 : 403,729.50 = 158,421.70 : x - Step 2: Convert to fraction form
292,557.70/403,729.50 = 158,421.70/x - Step 3: Cross multiply
292,557.70x = 403,729.50 × 158,421.70 - Step 4: Simplify right side
292,557.70x = 63,959,513,730.15 - Step 5: Solve for x
x = 63,959,513,730.15/292,557.70 - Step 6: Final answer
x = 218,621.88
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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.