Finding the Fourth Proportional to 318,746.66, 475,787.97 and 280,913.81
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Solution
The fourth proportional to 318,746.66, 475,787.97 and 280,913.81 is: 419,315.49
Step by Step Solution
- Step 1: Write the proportion equation
318,746.66 : 475,787.97 = 280,913.81 : x - Step 2: Convert to fraction form
318,746.66/475,787.97 = 280,913.81/x - Step 3: Cross multiply
318,746.66x = 475,787.97 × 280,913.81 - Step 4: Simplify right side
318,746.66x = 133,655,409,025.93 - Step 5: Solve for x
x = 133,655,409,025.93/318,746.66 - Step 6: Final answer
x = 419,315.49
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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.