Finding the Fourth Proportional to 448,322.99, 618,722.75 and 257,373.23
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Solution
The fourth proportional to 448,322.99, 618,722.75 and 257,373.23 is: 355,196.31
Step by Step Solution
- Step 1: Write the proportion equation
448,322.99 : 618,722.75 = 257,373.23 : x - Step 2: Convert to fraction form
448,322.99/618,722.75 = 257,373.23/x - Step 3: Cross multiply
448,322.99x = 618,722.75 × 257,373.23 - Step 4: Simplify right side
448,322.99x = 159,242,672,641.98 - Step 5: Solve for x
x = 159,242,672,641.98/448,322.99 - Step 6: Final answer
x = 355,196.31
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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.