Finding the Fourth Proportional to 398,157.73, 549,452.97 and 216,869.06
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Solution
The fourth proportional to 398,157.73, 549,452.97 and 216,869.06 is: 299,276.75
Step by Step Solution
- Step 1: Write the proportion equation
398,157.73 : 549,452.97 = 216,869.06 : x - Step 2: Convert to fraction form
398,157.73/549,452.97 = 216,869.06/x - Step 3: Cross multiply
398,157.73x = 549,452.97 × 216,869.06 - Step 4: Simplify right side
398,157.73x = 119,159,350,491.74 - Step 5: Solve for x
x = 119,159,350,491.74/398,157.73 - Step 6: Final answer
x = 299,276.75
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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.