Finding the Fourth Proportional to 369,139.05, 551,685.56 and 269,509.05
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Solution
The fourth proportional to 369,139.05, 551,685.56 and 269,509.05 is: 402,786.56
Step by Step Solution
- Step 1: Write the proportion equation
369,139.05 : 551,685.56 = 269,509.05 : x - Step 2: Convert to fraction form
369,139.05/551,685.56 = 269,509.05/x - Step 3: Cross multiply
369,139.05x = 551,685.56 × 269,509.05 - Step 4: Simplify right side
369,139.05x = 148,684,249,826.77 - Step 5: Solve for x
x = 148,684,249,826.77/369,139.05 - Step 6: Final answer
x = 402,786.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.