Finding the Fourth Proportional to 318,945.86, 478,432.14 and 119,246.03
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Solution
The fourth proportional to 318,945.86, 478,432.14 and 119,246.03 is: 178,874.03
Step by Step Solution
- Step 1: Write the proportion equation
318,945.86 : 478,432.14 = 119,246.03 : x - Step 2: Convert to fraction form
318,945.86/478,432.14 = 119,246.03/x - Step 3: Cross multiply
318,945.86x = 478,432.14 × 119,246.03 - Step 4: Simplify right side
318,945.86x = 57,051,130,927.24 - Step 5: Solve for x
x = 57,051,130,927.24/318,945.86 - Step 6: Final answer
x = 178,874.03
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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.