Finding the Fourth Proportional to 472,225.16, 651,651.75 and 257,360.62
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Solution
The fourth proportional to 472,225.16, 651,651.75 and 257,360.62 is: 355,147.32
Step by Step Solution
- Step 1: Write the proportion equation
472,225.16 : 651,651.75 = 257,360.62 : x - Step 2: Convert to fraction form
472,225.16/651,651.75 = 257,360.62/x - Step 3: Cross multiply
472,225.16x = 651,651.75 × 257,360.62 - Step 4: Simplify right side
472,225.16x = 167,709,498,404.09 - Step 5: Solve for x
x = 167,709,498,404.09/472,225.16 - Step 6: Final answer
x = 355,147.32
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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.