Finding the Fourth Proportional to 318,881.66, 478,156.32 and 119,037.68
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Solution
The fourth proportional to 318,881.66, 478,156.32 and 119,037.68 is: 178,494.49
Step by Step Solution
- Step 1: Write the proportion equation
318,881.66 : 478,156.32 = 119,037.68 : x - Step 2: Convert to fraction form
318,881.66/478,156.32 = 119,037.68/x - Step 3: Cross multiply
318,881.66x = 478,156.32 × 119,037.68 - Step 4: Simplify right side
318,881.66x = 56,918,619,010.14 - Step 5: Solve for x
x = 56,918,619,010.14/318,881.66 - Step 6: Final answer
x = 178,494.49
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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.