Finding the Fourth Proportional to 317,386.40, 476,079.12 and 130,266.08
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Solution
The fourth proportional to 317,386.40, 476,079.12 and 130,266.08 is: 195,398.92
Step by Step Solution
- Step 1: Write the proportion equation
317,386.40 : 476,079.12 = 130,266.08 : x - Step 2: Convert to fraction form
317,386.40/476,079.12 = 130,266.08/x - Step 3: Cross multiply
317,386.40x = 476,079.12 × 130,266.08 - Step 4: Simplify right side
317,386.40x = 62,016,960,732.25 - Step 5: Solve for x
x = 62,016,960,732.25/317,386.40 - Step 6: Final answer
x = 195,398.92
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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.