Finding the Fourth Proportional to 368,057.40, 549,400.05 and 315,802.68
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Solution
The fourth proportional to 368,057.40, 549,400.05 and 315,802.68 is: 471,399.32
Step by Step Solution
- Step 1: Write the proportion equation
368,057.40 : 549,400.05 = 315,802.68 : x - Step 2: Convert to fraction form
368,057.40/549,400.05 = 315,802.68/x - Step 3: Cross multiply
368,057.40x = 549,400.05 × 315,802.68 - Step 4: Simplify right side
368,057.40x = 173,502,008,182.13 - Step 5: Solve for x
x = 173,502,008,182.13/368,057.40 - Step 6: Final answer
x = 471,399.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.