Finding the Fourth Proportional to 374,739.99, 517,191.21 and 211,430.03
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Solution
The fourth proportional to 374,739.99, 517,191.21 and 211,430.03 is: 291,801.66
Step by Step Solution
- Step 1: Write the proportion equation
374,739.99 : 517,191.21 = 211,430.03 : x - Step 2: Convert to fraction form
374,739.99/517,191.21 = 211,430.03/x - Step 3: Cross multiply
374,739.99x = 517,191.21 × 211,430.03 - Step 4: Simplify right side
374,739.99x = 109,349,750,460.08 - Step 5: Solve for x
x = 109,349,750,460.08/374,739.99 - Step 6: Final answer
x = 291,801.66
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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.