Finding the Fourth Proportional to 307,394.58, 424,206.99 and 171,437.30
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Solution
The fourth proportional to 307,394.58, 424,206.99 and 171,437.30 is: 236,584.85
Step by Step Solution
- Step 1: Write the proportion equation
307,394.58 : 424,206.99 = 171,437.30 : x - Step 2: Convert to fraction form
307,394.58/424,206.99 = 171,437.30/x - Step 3: Cross multiply
307,394.58x = 424,206.99 × 171,437.30 - Step 4: Simplify right side
307,394.58x = 72,724,901,006.73 - Step 5: Solve for x
x = 72,724,901,006.73/307,394.58 - Step 6: Final answer
x = 236,584.85
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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.