Finding the Fourth Proportional to 408,421.77, 563,539.32 and 238,623.09
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Solution
The fourth proportional to 408,421.77, 563,539.32 and 238,623.09 is: 329,251.53
Step by Step Solution
- Step 1: Write the proportion equation
408,421.77 : 563,539.32 = 238,623.09 : x - Step 2: Convert to fraction form
408,421.77/563,539.32 = 238,623.09/x - Step 3: Cross multiply
408,421.77x = 563,539.32 × 238,623.09 - Step 4: Simplify right side
408,421.77x = 134,473,493,874.90 - Step 5: Solve for x
x = 134,473,493,874.90/408,421.77 - Step 6: Final answer
x = 329,251.53
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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.