Finding the Fourth Proportional to 402,657.20, 603,985.80 and 153,306.80
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Solution
The fourth proportional to 402,657.20, 603,985.80 and 153,306.80 is: 229,960.20
Step by Step Solution
- Step 1: Write the proportion equation
402,657.20 : 603,985.80 = 153,306.80 : x - Step 2: Convert to fraction form
402,657.20/603,985.80 = 153,306.80/x - Step 3: Cross multiply
402,657.20x = 603,985.80 × 153,306.80 - Step 4: Simplify right side
402,657.20x = 92,595,130,243.44 - Step 5: Solve for x
x = 92,595,130,243.44/402,657.20 - Step 6: Final answer
x = 229,960.20
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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.