Finding the Fourth Proportional to 238,171.23, 328,675.01 and 130,743.09
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Solution
The fourth proportional to 238,171.23, 328,675.01 and 130,743.09 is: 180,424.75
Step by Step Solution
- Step 1: Write the proportion equation
238,171.23 : 328,675.01 = 130,743.09 : x - Step 2: Convert to fraction form
238,171.23/328,675.01 = 130,743.09/x - Step 3: Cross multiply
238,171.23x = 328,675.01 × 130,743.09 - Step 4: Simplify right side
238,171.23x = 42,971,985,759.47 - Step 5: Solve for x
x = 42,971,985,759.47/238,171.23 - Step 6: Final answer
x = 180,424.75
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1.5x scale
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.