Finding the Fourth Proportional to 398,246.52, 549,578.01 and 216,957.99
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Solution
The fourth proportional to 398,246.52, 549,578.01 and 216,957.99 is: 299,400.84
Step by Step Solution
- Step 1: Write the proportion equation
398,246.52 : 549,578.01 = 216,957.99 : x - Step 2: Convert to fraction form
398,246.52/549,578.01 = 216,957.99/x - Step 3: Cross multiply
398,246.52x = 549,578.01 × 216,957.99 - Step 4: Simplify right side
398,246.52x = 119,235,343,272.31 - Step 5: Solve for x
x = 119,235,343,272.31/398,246.52 - Step 6: Final answer
x = 299,400.84
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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.