Finding the Fourth Proportional to 409,106.76, 564,567.21 and 239,373.78
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Solution
The fourth proportional to 409,106.76, 564,567.21 and 239,373.78 is: 330,335.75
Step by Step Solution
- Step 1: Write the proportion equation
409,106.76 : 564,567.21 = 239,373.78 : x - Step 2: Convert to fraction form
409,106.76/564,567.21 = 239,373.78/x - Step 3: Cross multiply
409,106.76x = 564,567.21 × 239,373.78 - Step 4: Simplify right side
409,106.76x = 135,142,587,121.75 - Step 5: Solve for x
x = 135,142,587,121.75/409,106.76 - Step 6: Final answer
x = 330,335.75
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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.