Finding the Fourth Proportional to 286,701.84, 395,614.08 and 157,619.07
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Solution
The fourth proportional to 286,701.84, 395,614.08 and 157,619.07 is: 217,495.37
Step by Step Solution
- Step 1: Write the proportion equation
286,701.84 : 395,614.08 = 157,619.07 : x - Step 2: Convert to fraction form
286,701.84/395,614.08 = 157,619.07/x - Step 3: Cross multiply
286,701.84x = 395,614.08 × 157,619.07 - Step 4: Simplify right side
286,701.84x = 62,356,323,368.51 - Step 5: Solve for x
x = 62,356,323,368.51/286,701.84 - Step 6: Final answer
x = 217,495.37
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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.