Finding the Fourth Proportional to 391,539.33, 540,276.14 and 238,521.99
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Solution
The fourth proportional to 391,539.33, 540,276.14 and 238,521.99 is: 329,131.03
Step by Step Solution
- Step 1: Write the proportion equation
391,539.33 : 540,276.14 = 238,521.99 : x - Step 2: Convert to fraction form
391,539.33/540,276.14 = 238,521.99/x - Step 3: Cross multiply
391,539.33x = 540,276.14 × 238,521.99 - Step 4: Simplify right side
391,539.33x = 128,867,742,684.66 - Step 5: Solve for x
x = 128,867,742,684.66/391,539.33 - Step 6: Final answer
x = 329,131.03
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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.