Finding the Fourth Proportional to 438,550.14, 605,209.14 and 257,392.74
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Solution
The fourth proportional to 438,550.14, 605,209.14 and 257,392.74 is: 355,207.82
Step by Step Solution
- Step 1: Write the proportion equation
438,550.14 : 605,209.14 = 257,392.74 : x - Step 2: Convert to fraction form
438,550.14/605,209.14 = 257,392.74/x - Step 3: Cross multiply
438,550.14x = 605,209.14 × 257,392.74 - Step 4: Simplify right side
438,550.14x = 155,776,438,817.64 - Step 5: Solve for x
x = 155,776,438,817.64/438,550.14 - Step 6: Final answer
x = 355,207.82
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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.