Finding the Fourth Proportional to 427,202.65, 589,539.80 and 243,435.96
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Solution
The fourth proportional to 427,202.65, 589,539.80 and 243,435.96 is: 335,941.70
Step by Step Solution
- Step 1: Write the proportion equation
427,202.65 : 589,539.80 = 243,435.96 : x - Step 2: Convert to fraction form
427,202.65/589,539.80 = 243,435.96/x - Step 3: Cross multiply
427,202.65x = 589,539.80 × 243,435.96 - Step 4: Simplify right side
427,202.65x = 143,515,184,223.51 - Step 5: Solve for x
x = 143,515,184,223.51/427,202.65 - Step 6: Final answer
x = 335,941.70
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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.