Finding the Fourth Proportional to 398,368.27, 549,730.92 and 226,285.70
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Solution
The fourth proportional to 398,368.27, 549,730.92 and 226,285.70 is: 312,264.44
Step by Step Solution
- Step 1: Write the proportion equation
398,368.27 : 549,730.92 = 226,285.70 : x - Step 2: Convert to fraction form
398,368.27/549,730.92 = 226,285.70/x - Step 3: Cross multiply
398,368.27x = 549,730.92 × 226,285.70 - Step 4: Simplify right side
398,368.27x = 124,396,243,295.19 - Step 5: Solve for x
x = 124,396,243,295.19/398,368.27 - Step 6: Final answer
x = 312,264.44
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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.