Finding the Fourth Proportional to 238,251.21, 357,263.58 and 138,440.19
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Solution
The fourth proportional to 238,251.21, 357,263.58 and 138,440.19 is: 207,594.49
Step by Step Solution
- Step 1: Write the proportion equation
238,251.21 : 357,263.58 = 138,440.19 : x - Step 2: Convert to fraction form
238,251.21/357,263.58 = 138,440.19/x - Step 3: Cross multiply
238,251.21x = 357,263.58 × 138,440.19 - Step 4: Simplify right side
238,251.21x = 49,459,637,895.28 - Step 5: Solve for x
x = 49,459,637,895.28/238,251.21 - Step 6: Final answer
x = 207,594.49
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1.5x scale
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.