Finding the Fourth Proportional to 318,437.99, 477,641.34 and 118,742.75
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Solution
The fourth proportional to 318,437.99, 477,641.34 and 118,742.75 is: 178,108.29
Step by Step Solution
- Step 1: Write the proportion equation
318,437.99 : 477,641.34 = 118,742.75 : x - Step 2: Convert to fraction form
318,437.99/477,641.34 = 118,742.75/x - Step 3: Cross multiply
318,437.99x = 477,641.34 × 118,742.75 - Step 4: Simplify right side
318,437.99x = 56,716,446,225.29 - Step 5: Solve for x
x = 56,716,446,225.29/318,437.99 - Step 6: Final answer
x = 178,108.29
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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.