Finding the Fourth Proportional to 461,374.02, 636,678.36 and 257,414.40
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Solution
The fourth proportional to 461,374.02, 636,678.36 and 257,414.40 is: 355,221.95
Step by Step Solution
- Step 1: Write the proportion equation
461,374.02 : 636,678.36 = 257,414.40 : x - Step 2: Convert to fraction form
461,374.02/636,678.36 = 257,414.40/x - Step 3: Cross multiply
461,374.02x = 636,678.36 × 257,414.40 - Step 4: Simplify right side
461,374.02x = 163,890,178,032.38 - Step 5: Solve for x
x = 163,890,178,032.38/461,374.02 - Step 6: Final answer
x = 355,221.95
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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.