Finding the Fourth Proportional to 387,036.98, 534,108.92 and 217,271.06
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Solution
The fourth proportional to 387,036.98, 534,108.92 and 217,271.06 is: 299,832.88
Step by Step Solution
- Step 1: Write the proportion equation
387,036.98 : 534,108.92 = 217,271.06 : x - Step 2: Convert to fraction form
387,036.98/534,108.92 = 217,271.06/x - Step 3: Cross multiply
387,036.98x = 534,108.92 × 217,271.06 - Step 4: Simplify right side
387,036.98x = 116,046,411,203.86 - Step 5: Solve for x
x = 116,046,411,203.86/387,036.98 - Step 6: Final answer
x = 299,832.88
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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.