Finding the Fourth Proportional to 398,264.63, 549,603.53 and 216,975.99
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Solution
The fourth proportional to 398,264.63, 549,603.53 and 216,975.99 is: 299,425.96
Step by Step Solution
- Step 1: Write the proportion equation
398,264.63 : 549,603.53 = 216,975.99 : x - Step 2: Convert to fraction form
398,264.63/549,603.53 = 216,975.99/x - Step 3: Cross multiply
398,264.63x = 549,603.53 × 216,975.99 - Step 4: Simplify right side
398,264.63x = 119,250,768,944.37 - Step 5: Solve for x
x = 119,250,768,944.37/398,264.63 - Step 6: Final answer
x = 299,425.96
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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.