Finding the Fourth Proportional to 380,281.99, 524,795.34 and 208,197.05
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Solution
The fourth proportional to 380,281.99, 524,795.34 and 208,197.05 is: 287,315.32
Step by Step Solution
- Step 1: Write the proportion equation
380,281.99 : 524,795.34 = 208,197.05 : x - Step 2: Convert to fraction form
380,281.99/524,795.34 = 208,197.05/x - Step 3: Cross multiply
380,281.99x = 524,795.34 × 208,197.05 - Step 4: Simplify right side
380,281.99x = 109,260,841,641.75 - Step 5: Solve for x
x = 109,260,841,641.75/380,281.99 - Step 6: Final answer
x = 287,315.32
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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.