Finding the Fourth Proportional to 292,484.94, 438,756.21 and 121,671.60
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Solution
The fourth proportional to 292,484.94, 438,756.21 and 121,671.60 is: 182,519.38
Step by Step Solution
- Step 1: Write the proportion equation
292,484.94 : 438,756.21 = 121,671.60 : x - Step 2: Convert to fraction form
292,484.94/438,756.21 = 121,671.60/x - Step 3: Cross multiply
292,484.94x = 438,756.21 × 121,671.60 - Step 4: Simplify right side
292,484.94x = 53,384,170,080.64 - Step 5: Solve for x
x = 53,384,170,080.64/292,484.94 - Step 6: Final answer
x = 182,519.38
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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.