Finding the Fourth Proportional to 238,128.24, 328,616.54 and 136,155.62
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Solution
The fourth proportional to 238,128.24, 328,616.54 and 136,155.62 is: 187,894.50
Step by Step Solution
- Step 1: Write the proportion equation
238,128.24 : 328,616.54 = 136,155.62 : x - Step 2: Convert to fraction form
238,128.24/328,616.54 = 136,155.62/x - Step 3: Cross multiply
238,128.24x = 328,616.54 × 136,155.62 - Step 4: Simplify right side
238,128.24x = 44,742,986,422.09 - Step 5: Solve for x
x = 44,742,986,422.09/238,128.24 - Step 6: Final answer
x = 187,894.50
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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.