Finding the Fourth Proportional to 386,781.24, 533,767.32 and 217,027.92
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Solution
The fourth proportional to 386,781.24, 533,767.32 and 217,027.92 is: 299,503.70
Step by Step Solution
- Step 1: Write the proportion equation
386,781.24 : 533,767.32 = 217,027.92 : x - Step 2: Convert to fraction form
386,781.24/533,767.32 = 217,027.92/x - Step 3: Cross multiply
386,781.24x = 533,767.32 × 217,027.92 - Step 4: Simplify right side
386,781.24x = 115,842,411,223.57 - Step 5: Solve for x
x = 115,842,411,223.57/386,781.24 - Step 6: Final answer
x = 299,503.70
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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.