Finding the Fourth Proportional to 399,232.63, 549,542.58 and 348,155.23
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Solution
The fourth proportional to 399,232.63, 549,542.58 and 348,155.23 is: 479,234.68
Step by Step Solution
- Step 1: Write the proportion equation
399,232.63 : 549,542.58 = 348,155.23 : x - Step 2: Convert to fraction form
399,232.63/549,542.58 = 348,155.23/x - Step 3: Cross multiply
399,232.63x = 549,542.58 × 348,155.23 - Step 4: Simplify right side
399,232.63x = 191,326,123,334.69 - Step 5: Solve for x
x = 191,326,123,334.69/399,232.63 - Step 6: Final answer
x = 479,234.68
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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.