Finding the Fourth Proportional to 457,305.71, 631,030.79 and 253,306.01
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Solution
The fourth proportional to 457,305.71, 631,030.79 and 253,306.01 is: 349,533.99
Step by Step Solution
- Step 1: Write the proportion equation
457,305.71 : 631,030.79 = 253,306.01 : x - Step 2: Convert to fraction form
457,305.71/631,030.79 = 253,306.01/x - Step 3: Cross multiply
457,305.71x = 631,030.79 × 253,306.01 - Step 4: Simplify right side
457,305.71x = 159,843,887,180.36 - Step 5: Solve for x
x = 159,843,887,180.36/457,305.71 - Step 6: Final answer
x = 349,533.99
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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.