Finding the Fourth Proportional to 478,090.68, 716,690.52 and 162,331.62
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Solution
The fourth proportional to 478,090.68, 716,690.52 and 162,331.62 is: 243,346.16
Step by Step Solution
- Step 1: Write the proportion equation
478,090.68 : 716,690.52 = 162,331.62 : x - Step 2: Convert to fraction form
478,090.68/716,690.52 = 162,331.62/x - Step 3: Cross multiply
478,090.68x = 716,690.52 × 162,331.62 - Step 4: Simplify right side
478,090.68x = 116,341,533,150.24 - Step 5: Solve for x
x = 116,341,533,150.24/478,090.68 - Step 6: Final answer
x = 243,346.16
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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.