Finding the Fourth Proportional to 390,120.48, 538,214.21 and 244,841.48
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Solution
The fourth proportional to 390,120.48, 538,214.21 and 244,841.48 is: 337,785.82
Step by Step Solution
- Step 1: Write the proportion equation
390,120.48 : 538,214.21 = 244,841.48 : x - Step 2: Convert to fraction form
390,120.48/538,214.21 = 244,841.48/x - Step 3: Cross multiply
390,120.48x = 538,214.21 × 244,841.48 - Step 4: Simplify right side
390,120.48x = 131,777,165,437.76 - Step 5: Solve for x
x = 131,777,165,437.76/390,120.48 - Step 6: Final answer
x = 337,785.82
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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.