Finding the Fourth Proportional to 315,915.60, 473,803.44 and 91,227.12
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Solution
The fourth proportional to 315,915.60, 473,803.44 and 91,227.12 is: 136,820.48
Step by Step Solution
- Step 1: Write the proportion equation
315,915.60 : 473,803.44 = 91,227.12 : x - Step 2: Convert to fraction form
315,915.60/473,803.44 = 91,227.12/x - Step 3: Cross multiply
315,915.60x = 473,803.44 × 91,227.12 - Step 4: Simplify right side
315,915.60x = 43,223,723,277.29 - Step 5: Solve for x
x = 43,223,723,277.29/315,915.60 - Step 6: Final answer
x = 136,820.48
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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.