Finding the Fourth Proportional to 157,237.76, 235,479.36 and 138,325.68
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Solution
The fourth proportional to 157,237.76, 235,479.36 and 138,325.68 is: 207,156.62
Step by Step Solution
- Step 1: Write the proportion equation
157,237.76 : 235,479.36 = 138,325.68 : x - Step 2: Convert to fraction form
157,237.76/235,479.36 = 138,325.68/x - Step 3: Cross multiply
157,237.76x = 235,479.36 × 138,325.68 - Step 4: Simplify right side
157,237.76x = 32,572,842,597.96 - Step 5: Solve for x
x = 32,572,842,597.96/157,237.76 - Step 6: Final answer
x = 207,156.62
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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.