Finding the Fourth Proportional to 380,005.41, 524,403.58 and 210,240.75
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Solution
The fourth proportional to 380,005.41, 524,403.58 and 210,240.75 is: 290,130.09
Step by Step Solution
- Step 1: Write the proportion equation
380,005.41 : 524,403.58 = 210,240.75 : x - Step 2: Convert to fraction form
380,005.41/524,403.58 = 210,240.75/x - Step 3: Cross multiply
380,005.41x = 524,403.58 × 210,240.75 - Step 4: Simplify right side
380,005.41x = 110,251,001,961.89 - Step 5: Solve for x
x = 110,251,001,961.89/380,005.41 - Step 6: Final answer
x = 290,130.09
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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.