Finding the Fourth Proportional to 472,169.36, 651,585.12 and 257,311.28
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Solution
The fourth proportional to 472,169.36, 651,585.12 and 257,311.28 is: 355,084.88
Step by Step Solution
- Step 1: Write the proportion equation
472,169.36 : 651,585.12 = 257,311.28 : x - Step 2: Convert to fraction form
472,169.36/651,585.12 = 257,311.28/x - Step 3: Cross multiply
472,169.36x = 651,585.12 × 257,311.28 - Step 4: Simplify right side
472,169.36x = 167,660,201,256.15 - Step 5: Solve for x
x = 167,660,201,256.15/472,169.36 - Step 6: Final answer
x = 355,084.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.