Finding the Fourth Proportional to 280,645.68, 387,298.64 and 167,534.08
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Solution
The fourth proportional to 280,645.68, 387,298.64 and 167,534.08 is: 231,201.57
Step by Step Solution
- Step 1: Write the proportion equation
280,645.68 : 387,298.64 = 167,534.08 : x - Step 2: Convert to fraction form
280,645.68/387,298.64 = 167,534.08/x - Step 3: Cross multiply
280,645.68x = 387,298.64 × 167,534.08 - Step 4: Simplify right side
280,645.68x = 64,885,721,337.65 - Step 5: Solve for x
x = 64,885,721,337.65/280,645.68 - Step 6: Final answer
x = 231,201.57
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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.