Finding the Fourth Proportional to 143,248.78, 214,739.62 and 48,412.65
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Solution
The fourth proportional to 143,248.78, 214,739.62 and 48,412.65 is: 72,573.84
Step by Step Solution
- Step 1: Write the proportion equation
143,248.78 : 214,739.62 = 48,412.65 : x - Step 2: Convert to fraction form
143,248.78/214,739.62 = 48,412.65/x - Step 3: Cross multiply
143,248.78x = 214,739.62 × 48,412.65 - Step 4: Simplify right side
143,248.78x = 10,396,113,822.13 - Step 5: Solve for x
x = 10,396,113,822.13/143,248.78 - Step 6: Final answer
x = 72,573.84
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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.