Finding the Fourth Proportional to 306,991.96, 459,637.74 and 156,909.08
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Solution
The fourth proportional to 306,991.96, 459,637.74 and 156,909.08 is: 234,929.07
Step by Step Solution
- Step 1: Write the proportion equation
306,991.96 : 459,637.74 = 156,909.08 : x - Step 2: Convert to fraction form
306,991.96/459,637.74 = 156,909.08/x - Step 3: Cross multiply
306,991.96x = 459,637.74 × 156,909.08 - Step 4: Simplify right side
306,991.96x = 72,121,336,065.77 - Step 5: Solve for x
x = 72,121,336,065.77/306,991.96 - Step 6: Final answer
x = 234,929.07
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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.