Finding the Fourth Proportional to 478,157.75, 716,698.37 and 208,512.80
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Solution
The fourth proportional to 478,157.75, 716,698.37 and 208,512.80 is: 312,534.47
Step by Step Solution
- Step 1: Write the proportion equation
478,157.75 : 716,698.37 = 208,512.80 : x - Step 2: Convert to fraction form
478,157.75/716,698.37 = 208,512.80/x - Step 3: Cross multiply
478,157.75x = 716,698.37 × 208,512.80 - Step 4: Simplify right side
478,157.75x = 149,440,779,258.08 - Step 5: Solve for x
x = 149,440,779,258.08/478,157.75 - Step 6: Final answer
x = 312,534.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.