Finding the Fourth Proportional to 286,673.18, 395,574.61 and 157,590.36
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Solution
The fourth proportional to 286,673.18, 395,574.61 and 157,590.36 is: 217,455.80
Step by Step Solution
- Step 1: Write the proportion equation
286,673.18 : 395,574.61 = 157,590.36 : x - Step 2: Convert to fraction form
286,673.18/395,574.61 = 157,590.36/x - Step 3: Cross multiply
286,673.18x = 395,574.61 × 157,590.36 - Step 4: Simplify right side
286,673.18x = 62,338,745,541.49 - Step 5: Solve for x
x = 62,338,745,541.49/286,673.18 - Step 6: Final answer
x = 217,455.80
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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.