Finding the Fourth Proportional to 319,154.55, 478,324.80 and 169,466.55
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Solution
The fourth proportional to 319,154.55, 478,324.80 and 169,466.55 is: 253,983.70
Step by Step Solution
- Step 1: Write the proportion equation
319,154.55 : 478,324.80 = 169,466.55 : x - Step 2: Convert to fraction form
319,154.55/478,324.80 = 169,466.55/x - Step 3: Cross multiply
319,154.55x = 478,324.80 × 169,466.55 - Step 4: Simplify right side
319,154.55x = 81,060,053,635.44 - Step 5: Solve for x
x = 81,060,053,635.44/319,154.55 - Step 6: Final answer
x = 253,983.70
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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.