Finding the Fourth Proportional to 380,005.48, 569,824.14 and 155,276.68
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Solution
The fourth proportional to 380,005.48, 569,824.14 and 155,276.68 is: 232,839.80
Step by Step Solution
- Step 1: Write the proportion equation
380,005.48 : 569,824.14 = 155,276.68 : x - Step 2: Convert to fraction form
380,005.48/569,824.14 = 155,276.68/x - Step 3: Cross multiply
380,005.48x = 569,824.14 × 155,276.68 - Step 4: Simplify right side
380,005.48x = 88,480,400,643.06 - Step 5: Solve for x
x = 88,480,400,643.06/380,005.48 - Step 6: Final answer
x = 232,839.80
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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.