Finding the Fourth Proportional to 408,210.98, 612,595.12 and 141,968.84
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Solution
The fourth proportional to 408,210.98, 612,595.12 and 141,968.84 is: 213,050.17
Step by Step Solution
- Step 1: Write the proportion equation
408,210.98 : 612,595.12 = 141,968.84 : x - Step 2: Convert to fraction form
408,210.98/612,595.12 = 141,968.84/x - Step 3: Cross multiply
408,210.98x = 612,595.12 × 141,968.84 - Step 4: Simplify right side
408,210.98x = 86,969,418,576.06 - Step 5: Solve for x
x = 86,969,418,576.06/408,210.98 - Step 6: Final answer
x = 213,050.17
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1.5x scale
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.