Finding the Fourth Proportional to 319,497.80, 479,246.70 and 97,881.80
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Solution
The fourth proportional to 319,497.80, 479,246.70 and 97,881.80 is: 146,822.70
Step by Step Solution
- Step 1: Write the proportion equation
319,497.80 : 479,246.70 = 97,881.80 : x - Step 2: Convert to fraction form
319,497.80/479,246.70 = 97,881.80/x - Step 3: Cross multiply
319,497.80x = 479,246.70 × 97,881.80 - Step 4: Simplify right side
319,497.80x = 46,909,529,640.06 - Step 5: Solve for x
x = 46,909,529,640.06/319,497.80 - Step 6: Final answer
x = 146,822.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.