Finding the Fourth Proportional to 398,768.26, 549,989.05 and 255,541.63
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Solution
The fourth proportional to 398,768.26, 549,989.05 and 255,541.63 is: 352,448.05
Step by Step Solution
- Step 1: Write the proportion equation
398,768.26 : 549,989.05 = 255,541.63 : x - Step 2: Convert to fraction form
398,768.26/549,989.05 = 255,541.63/x - Step 3: Cross multiply
398,768.26x = 549,989.05 × 255,541.63 - Step 4: Simplify right side
398,768.26x = 140,545,095,569.21 - Step 5: Solve for x
x = 140,545,095,569.21/398,768.26 - Step 6: Final answer
x = 352,448.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.