Finding the Fourth Proportional to 317,386.21, 476,161.32 and 117,763.53
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Solution
The fourth proportional to 317,386.21, 476,161.32 and 117,763.53 is: 176,675.72
Step by Step Solution
- Step 1: Write the proportion equation
317,386.21 : 476,161.32 = 117,763.53 : x - Step 2: Convert to fraction form
317,386.21/476,161.32 = 117,763.53/x - Step 3: Cross multiply
317,386.21x = 476,161.32 × 117,763.53 - Step 4: Simplify right side
317,386.21x = 56,074,434,923.04 - Step 5: Solve for x
x = 56,074,434,923.04/317,386.21 - Step 6: Final answer
x = 176,675.72
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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.