Finding the Fourth Proportional to 382,023.18, 527,195.12 and 238,866.21
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Solution
The fourth proportional to 382,023.18, 527,195.12 and 238,866.21 is: 329,637.32
Step by Step Solution
- Step 1: Write the proportion equation
382,023.18 : 527,195.12 = 238,866.21 : x - Step 2: Convert to fraction form
382,023.18/527,195.12 = 238,866.21/x - Step 3: Cross multiply
382,023.18x = 527,195.12 × 238,866.21 - Step 4: Simplify right side
382,023.18x = 125,929,099,050.56 - Step 5: Solve for x
x = 125,929,099,050.56/382,023.18 - Step 6: Final answer
x = 329,637.32
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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.