Finding the Fourth Proportional to 409,973.32, 615,149.79 and 157,169.26
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Solution
The fourth proportional to 409,973.32, 615,149.79 and 157,169.26 is: 235,826.66
Step by Step Solution
- Step 1: Write the proportion equation
409,973.32 : 615,149.79 = 157,169.26 : x - Step 2: Convert to fraction form
409,973.32/615,149.79 = 157,169.26/x - Step 3: Cross multiply
409,973.32x = 615,149.79 × 157,169.26 - Step 4: Simplify right side
409,973.32x = 96,682,637,283.46 - Step 5: Solve for x
x = 96,682,637,283.46/409,973.32 - Step 6: Final answer
x = 235,826.66
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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.