Finding the Fourth Proportional to 103,497.70, 155,216.50 and 40,303.70
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Solution
The fourth proportional to 103,497.70, 155,216.50 and 40,303.70 is: 60,443.85
Step by Step Solution
- Step 1: Write the proportion equation
103,497.70 : 155,216.50 = 40,303.70 : x - Step 2: Convert to fraction form
103,497.70/155,216.50 = 40,303.70/x - Step 3: Cross multiply
103,497.70x = 155,216.50 × 40,303.70 - Step 4: Simplify right side
103,497.70x = 6,255,799,251.05 - Step 5: Solve for x
x = 6,255,799,251.05/103,497.70 - Step 6: Final answer
x = 60,443.85
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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.