Finding the Fourth Proportional to 145,616.06, 218,424.09 and 40,435.03
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Solution
The fourth proportional to 145,616.06, 218,424.09 and 40,435.03 is: 60,652.55
Step by Step Solution
- Step 1: Write the proportion equation
145,616.06 : 218,424.09 = 40,435.03 : x - Step 2: Convert to fraction form
145,616.06/218,424.09 = 40,435.03/x - Step 3: Cross multiply
145,616.06x = 218,424.09 × 40,435.03 - Step 4: Simplify right side
145,616.06x = 8,831,985,056.53 - Step 5: Solve for x
x = 8,831,985,056.53/145,616.06 - Step 6: Final answer
x = 60,652.55
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1.5x scale
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.