Finding the Fourth Proportional to 520,070.52, 780,202.26 and 164,988.60
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Solution
The fourth proportional to 520,070.52, 780,202.26 and 164,988.60 is: 247,513.51
Step by Step Solution
- Step 1: Write the proportion equation
520,070.52 : 780,202.26 = 164,988.60 : x - Step 2: Convert to fraction form
520,070.52/780,202.26 = 164,988.60/x - Step 3: Cross multiply
520,070.52x = 780,202.26 × 164,988.60 - Step 4: Simplify right side
520,070.52x = 128,724,478,594.24 - Step 5: Solve for x
x = 128,724,478,594.24/520,070.52 - Step 6: Final answer
x = 247,513.51
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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.