Finding the Fourth Proportional to 209,438.99, 289,030.80 and 118,801.07
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Solution
The fourth proportional to 209,438.99, 289,030.80 and 118,801.07 is: 163,948.31
Step by Step Solution
- Step 1: Write the proportion equation
209,438.99 : 289,030.80 = 118,801.07 : x - Step 2: Convert to fraction form
209,438.99/289,030.80 = 118,801.07/x - Step 3: Cross multiply
209,438.99x = 289,030.80 × 118,801.07 - Step 4: Simplify right side
209,438.99x = 34,337,167,718.92 - Step 5: Solve for x
x = 34,337,167,718.92/209,438.99 - Step 6: Final answer
x = 163,948.31
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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.