Finding the Fourth Proportional to 448,398.06, 618,794.11 and 247,201.26
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Solution
The fourth proportional to 448,398.06, 618,794.11 and 247,201.26 is: 341,140.38
Step by Step Solution
- Step 1: Write the proportion equation
448,398.06 : 618,794.11 = 247,201.26 : x - Step 2: Convert to fraction form
448,398.06/618,794.11 = 247,201.26/x - Step 3: Cross multiply
448,398.06x = 618,794.11 × 247,201.26 - Step 4: Simplify right side
448,398.06x = 152,966,683,672.58 - Step 5: Solve for x
x = 152,966,683,672.58/448,398.06 - Step 6: Final answer
x = 341,140.38
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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.