Finding the Fourth Proportional to 386,254.97, 532,977.93 and 224,985.59
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Solution
The fourth proportional to 386,254.97, 532,977.93 and 224,985.59 is: 310,448.70
Step by Step Solution
- Step 1: Write the proportion equation
386,254.97 : 532,977.93 = 224,985.59 : x - Step 2: Convert to fraction form
386,254.97/532,977.93 = 224,985.59/x - Step 3: Cross multiply
386,254.97x = 532,977.93 × 224,985.59 - Step 4: Simplify right side
386,254.97x = 119,912,351,373.14 - Step 5: Solve for x
x = 119,912,351,373.14/386,254.97 - Step 6: Final answer
x = 310,448.70
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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.