Finding the Fourth Proportional to 390,469.24, 538,850.70 and 211,621.24
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Solution
The fourth proportional to 390,469.24, 538,850.70 and 211,621.24 is: 292,039.02
Step by Step Solution
- Step 1: Write the proportion equation
390,469.24 : 538,850.70 = 211,621.24 : x - Step 2: Convert to fraction form
390,469.24/538,850.70 = 211,621.24/x - Step 3: Cross multiply
390,469.24x = 538,850.70 × 211,621.24 - Step 4: Simplify right side
390,469.24x = 114,032,253,308.87 - Step 5: Solve for x
x = 114,032,253,308.87/390,469.24 - Step 6: Final answer
x = 292,039.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.