Finding the Fourth Proportional to 306,699.90, 423,266.36 and 185,853.08
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Solution
The fourth proportional to 306,699.90, 423,266.36 and 185,853.08 is: 256,489.66
Step by Step Solution
- Step 1: Write the proportion equation
306,699.90 : 423,266.36 = 185,853.08 : x - Step 2: Convert to fraction form
306,699.90/423,266.36 = 185,853.08/x - Step 3: Cross multiply
306,699.90x = 423,266.36 × 185,853.08 - Step 4: Simplify right side
306,699.90x = 78,665,353,620.79 - Step 5: Solve for x
x = 78,665,353,620.79/306,699.90 - Step 6: Final answer
x = 256,489.66
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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.