Finding the Fourth Proportional to 390,294.18, 538,598.97 and 220,524.66
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Solution
The fourth proportional to 390,294.18, 538,598.97 and 220,524.66 is: 304,320.08
Step by Step Solution
- Step 1: Write the proportion equation
390,294.18 : 538,598.97 = 220,524.66 : x - Step 2: Convert to fraction form
390,294.18/538,598.97 = 220,524.66/x - Step 3: Cross multiply
390,294.18x = 538,598.97 × 220,524.66 - Step 4: Simplify right side
390,294.18x = 118,774,354,735.60 - Step 5: Solve for x
x = 118,774,354,735.60/390,294.18 - Step 6: Final answer
x = 304,320.08
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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.