Finding the Fourth Proportional to 346,415.20, 519,695.70 and 109,781.80
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Solution
The fourth proportional to 346,415.20, 519,695.70 and 109,781.80 is: 164,695.80
Step by Step Solution
- Step 1: Write the proportion equation
346,415.20 : 519,695.70 = 109,781.80 : x - Step 2: Convert to fraction form
346,415.20/519,695.70 = 109,781.80/x - Step 3: Cross multiply
346,415.20x = 519,695.70 × 109,781.80 - Step 4: Simplify right side
346,415.20x = 57,053,129,398.26 - Step 5: Solve for x
x = 57,053,129,398.26/346,415.20 - Step 6: Final answer
x = 164,695.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.