Finding the Fourth Proportional to 295,299.10, 442,657.05 and 145,416.70
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Solution
The fourth proportional to 295,299.10, 442,657.05 and 145,416.70 is: 217,981.45
Step by Step Solution
- Step 1: Write the proportion equation
295,299.10 : 442,657.05 = 145,416.70 : x - Step 2: Convert to fraction form
295,299.10/442,657.05 = 145,416.70/x - Step 3: Cross multiply
295,299.10x = 442,657.05 × 145,416.70 - Step 4: Simplify right side
295,299.10x = 64,369,727,442.74 - Step 5: Solve for x
x = 64,369,727,442.74/295,299.10 - Step 6: Final answer
x = 217,981.45
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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.