Finding the Fourth Proportional to 319,497.40, 479,246.10 and 317,423.80
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Solution
The fourth proportional to 319,497.40, 479,246.10 and 317,423.80 is: 476,135.70
Step by Step Solution
- Step 1: Write the proportion equation
319,497.40 : 479,246.10 = 317,423.80 : x - Step 2: Convert to fraction form
319,497.40/479,246.10 = 317,423.80/x - Step 3: Cross multiply
319,497.40x = 479,246.10 × 317,423.80 - Step 4: Simplify right side
319,497.40x = 152,124,118,197.18 - Step 5: Solve for x
x = 152,124,118,197.18/319,497.40 - Step 6: Final answer
x = 476,135.70
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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.