Finding the Fourth Proportional to 346,798.97, 478,390.96 and 282,337.55
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Solution
The fourth proportional to 346,798.97, 478,390.96 and 282,337.55 is: 389,469.82
Step by Step Solution
- Step 1: Write the proportion equation
346,798.97 : 478,390.96 = 282,337.55 : x - Step 2: Convert to fraction form
346,798.97/478,390.96 = 282,337.55/x - Step 3: Cross multiply
346,798.97x = 478,390.96 × 282,337.55 - Step 4: Simplify right side
346,798.97x = 135,067,731,588.55 - Step 5: Solve for x
x = 135,067,731,588.55/346,798.97 - Step 6: Final answer
x = 389,469.82
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1.5x scale
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.