Finding the Fourth Proportional to 319,482.55, 478,816.80 and 169,794.55
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Solution
The fourth proportional to 319,482.55, 478,816.80 and 169,794.55 is: 254,475.50
Step by Step Solution
- Step 1: Write the proportion equation
319,482.55 : 478,816.80 = 169,794.55 : x - Step 2: Convert to fraction form
319,482.55/478,816.80 = 169,794.55/x - Step 3: Cross multiply
319,482.55x = 478,816.80 × 169,794.55 - Step 4: Simplify right side
319,482.55x = 81,300,483,088.44 - Step 5: Solve for x
x = 81,300,483,088.44/319,482.55 - Step 6: Final answer
x = 254,475.50
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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.