Finding the Fourth Proportional to 238,143.07, 328,641.68 and 130,723.09
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Solution
The fourth proportional to 238,143.07, 328,641.68 and 130,723.09 is: 180,400.19
Step by Step Solution
- Step 1: Write the proportion equation
238,143.07 : 328,641.68 = 130,723.09 : x - Step 2: Convert to fraction form
238,143.07/328,641.68 = 130,723.09/x - Step 3: Cross multiply
238,143.07x = 328,641.68 × 130,723.09 - Step 4: Simplify right side
238,143.07x = 42,961,055,258.78 - Step 5: Solve for x
x = 42,961,055,258.78/238,143.07 - Step 6: Final answer
x = 180,400.19
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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.