Finding the Fourth Proportional to 438,579.98, 605,386.33 and 257,225.74
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Solution
The fourth proportional to 438,579.98, 605,386.33 and 257,225.74 is: 355,057.12
Step by Step Solution
- Step 1: Write the proportion equation
438,579.98 : 605,386.33 = 257,225.74 : x - Step 2: Convert to fraction form
438,579.98/605,386.33 = 257,225.74/x - Step 3: Cross multiply
438,579.98x = 605,386.33 × 257,225.74 - Step 4: Simplify right side
438,579.98x = 155,720,946,720.13 - Step 5: Solve for x
x = 155,720,946,720.13/438,579.98 - Step 6: Final answer
x = 355,057.12
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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.