Finding the Fourth Proportional to 398,779.19, 550,295.87 and 237,630.65
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Solution
The fourth proportional to 398,779.19, 550,295.87 and 237,630.65 is: 327,918.73
Step by Step Solution
- Step 1: Write the proportion equation
398,779.19 : 550,295.87 = 237,630.65 : x - Step 2: Convert to fraction form
398,779.19/550,295.87 = 237,630.65/x - Step 3: Cross multiply
398,779.19x = 550,295.87 × 237,630.65 - Step 4: Simplify right side
398,779.19x = 130,767,164,092.26 - Step 5: Solve for x
x = 130,767,164,092.26/398,779.19 - Step 6: Final answer
x = 327,918.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.