Finding the Fourth Proportional to 472,220.68, 651,645.53 and 257,356.12
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Solution
The fourth proportional to 472,220.68, 651,645.53 and 257,356.12 is: 355,141.09
Step by Step Solution
- Step 1: Write the proportion equation
472,220.68 : 651,645.53 = 257,356.12 : x - Step 2: Convert to fraction form
472,220.68/651,645.53 = 257,356.12/x - Step 3: Cross multiply
472,220.68x = 651,645.53 × 257,356.12 - Step 4: Simplify right side
472,220.68x = 167,704,965,216.14 - Step 5: Solve for x
x = 167,704,965,216.14/472,220.68 - Step 6: Final answer
x = 355,141.09
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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.