Finding the Fourth Proportional to 163,313.70, 244,970.55 and 139,985.70
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Solution
The fourth proportional to 163,313.70, 244,970.55 and 139,985.70 is: 209,978.55
Step by Step Solution
- Step 1: Write the proportion equation
163,313.70 : 244,970.55 = 139,985.70 : x - Step 2: Convert to fraction form
163,313.70/244,970.55 = 139,985.70/x - Step 3: Cross multiply
163,313.70x = 244,970.55 × 139,985.70 - Step 4: Simplify right side
163,313.70x = 34,292,373,921.14 - Step 5: Solve for x
x = 34,292,373,921.14/163,313.70 - Step 6: Final answer
x = 209,978.55
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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.