Finding the Fourth Proportional to 302,079.60, 453,117.80 and 77,439.60
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Solution
The fourth proportional to 302,079.60, 453,117.80 and 77,439.60 is: 116,158.99
Step by Step Solution
- Step 1: Write the proportion equation
302,079.60 : 453,117.80 = 77,439.60 : x - Step 2: Convert to fraction form
302,079.60/453,117.80 = 77,439.60/x - Step 3: Cross multiply
302,079.60x = 453,117.80 × 77,439.60 - Step 4: Simplify right side
302,079.60x = 35,089,261,184.88 - Step 5: Solve for x
x = 35,089,261,184.88/302,079.60 - Step 6: Final answer
x = 116,158.99
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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.