Finding the Fourth Proportional to 163,219.05, 244,790.28 and 78,937.53
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Solution
The fourth proportional to 163,219.05, 244,790.28 and 78,937.53 is: 118,387.77
Step by Step Solution
- Step 1: Write the proportion equation
163,219.05 : 244,790.28 = 78,937.53 : x - Step 2: Convert to fraction form
163,219.05/244,790.28 = 78,937.53/x - Step 3: Cross multiply
163,219.05x = 244,790.28 × 78,937.53 - Step 4: Simplify right side
163,219.05x = 19,323,140,071.21 - Step 5: Solve for x
x = 19,323,140,071.21/163,219.05 - Step 6: Final answer
x = 118,387.77
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1.5x scale
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.