Finding the Fourth Proportional to 319,728.06, 441,228.36 and 176,488.17
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Solution
The fourth proportional to 319,728.06, 441,228.36 and 176,488.17 is: 243,555.68
Step by Step Solution
- Step 1: Write the proportion equation
319,728.06 : 441,228.36 = 176,488.17 : x - Step 2: Convert to fraction form
319,728.06/441,228.36 = 176,488.17/x - Step 3: Cross multiply
319,728.06x = 441,228.36 × 176,488.17 - Step 4: Simplify right side
319,728.06x = 77,871,584,815.73 - Step 5: Solve for x
x = 77,871,584,815.73/319,728.06 - Step 6: Final answer
x = 243,555.68
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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.