Finding the Fourth Proportional to 319,446.68, 478,762.99 and 169,758.68
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Solution
The fourth proportional to 319,446.68, 478,762.99 and 169,758.68 is: 254,421.71
Step by Step Solution
- Step 1: Write the proportion equation
319,446.68 : 478,762.99 = 169,758.68 : x - Step 2: Convert to fraction form
319,446.68/478,762.99 = 169,758.68/x - Step 3: Cross multiply
319,446.68x = 478,762.99 × 169,758.68 - Step 4: Simplify right side
319,446.68x = 81,274,170,397.04 - Step 5: Solve for x
x = 81,274,170,397.04/319,446.68 - Step 6: Final answer
x = 254,421.71
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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.