Finding the Fourth Proportional to 422,271.84, 582,746.49 and 238,495.68
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Solution
The fourth proportional to 422,271.84, 582,746.49 and 238,495.68 is: 329,130.45
Step by Step Solution
- Step 1: Write the proportion equation
422,271.84 : 582,746.49 = 238,495.68 : x - Step 2: Convert to fraction form
422,271.84/582,746.49 = 238,495.68/x - Step 3: Cross multiply
422,271.84x = 582,746.49 × 238,495.68 - Step 4: Simplify right side
422,271.84x = 138,982,520,400.16 - Step 5: Solve for x
x = 138,982,520,400.16/422,271.84 - Step 6: Final answer
x = 329,130.45
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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.