Finding the Fourth Proportional to 316,624.20, 474,014.70 and 307,408.20
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Solution
The fourth proportional to 316,624.20, 474,014.70 and 307,408.20 is: 460,217.53
Step by Step Solution
- Step 1: Write the proportion equation
316,624.20 : 474,014.70 = 307,408.20 : x - Step 2: Convert to fraction form
316,624.20/474,014.70 = 307,408.20/x - Step 3: Cross multiply
316,624.20x = 474,014.70 × 307,408.20 - Step 4: Simplify right side
316,624.20x = 145,716,005,700.54 - Step 5: Solve for x
x = 145,716,005,700.54/316,624.20 - Step 6: Final answer
x = 460,217.53
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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.