Finding the Fourth Proportional to 320,422.18, 442,184.89 and 175,228.62
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Solution
The fourth proportional to 320,422.18, 442,184.89 and 175,228.62 is: 241,816.74
Step by Step Solution
- Step 1: Write the proportion equation
320,422.18 : 442,184.89 = 175,228.62 : x - Step 2: Convert to fraction form
320,422.18/442,184.89 = 175,228.62/x - Step 3: Cross multiply
320,422.18x = 442,184.89 × 175,228.62 - Step 4: Simplify right side
320,422.18x = 77,483,448,059.55 - Step 5: Solve for x
x = 77,483,448,059.55/320,422.18 - Step 6: Final answer
x = 241,816.74
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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.