Finding the Fourth Proportional to 538,743.80, 808,115.70 and 239,223.80
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Solution
The fourth proportional to 538,743.80, 808,115.70 and 239,223.80 is: 358,835.70
Step by Step Solution
- Step 1: Write the proportion equation
538,743.80 : 808,115.70 = 239,223.80 : x - Step 2: Convert to fraction form
538,743.80/808,115.70 = 239,223.80/x - Step 3: Cross multiply
538,743.80x = 808,115.70 × 239,223.80 - Step 4: Simplify right side
538,743.80x = 193,320,508,593.66 - Step 5: Solve for x
x = 193,320,508,593.66/538,743.80 - Step 6: Final answer
x = 358,835.70
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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.