Finding the Fourth Proportional to 369,530.10, 554,295.15 and 309,742.99
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Solution
The fourth proportional to 369,530.10, 554,295.15 and 309,742.99 is: 464,614.48
Step by Step Solution
- Step 1: Write the proportion equation
369,530.10 : 554,295.15 = 309,742.99 : x - Step 2: Convert to fraction form
369,530.10/554,295.15 = 309,742.99/x - Step 3: Cross multiply
369,530.10x = 554,295.15 × 309,742.99 - Step 4: Simplify right side
369,530.10x = 171,689,035,717.76 - Step 5: Solve for x
x = 171,689,035,717.76/369,530.10 - Step 6: Final answer
x = 464,614.48
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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.