Finding the Fourth Proportional to 389,348.15, 537,332.06 and 219,617.51
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Solution
The fourth proportional to 389,348.15, 537,332.06 and 219,617.51 is: 303,089.99
Step by Step Solution
- Step 1: Write the proportion equation
389,348.15 : 537,332.06 = 219,617.51 : x - Step 2: Convert to fraction form
389,348.15/537,332.06 = 219,617.51/x - Step 3: Cross multiply
389,348.15x = 537,332.06 × 219,617.51 - Step 4: Simplify right side
389,348.15x = 118,007,526,922.75 - Step 5: Solve for x
x = 118,007,526,922.75/389,348.15 - Step 6: Final answer
x = 303,089.99
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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.