Finding the Fourth Proportional to 318,992.36, 478,489.08 and 299,506.16
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Solution
The fourth proportional to 318,992.36, 478,489.08 and 299,506.16 is: 449,259.75
Step by Step Solution
- Step 1: Write the proportion equation
318,992.36 : 478,489.08 = 299,506.16 : x - Step 2: Convert to fraction form
318,992.36/478,489.08 = 299,506.16/x - Step 3: Cross multiply
318,992.36x = 478,489.08 × 299,506.16 - Step 4: Simplify right side
318,992.36x = 143,310,426,952.73 - Step 5: Solve for x
x = 143,310,426,952.73/318,992.36 - Step 6: Final answer
x = 449,259.75
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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.