Finding the Fourth Proportional to 399,750.12, 551,656.62 and 218,462.14
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Solution
The fourth proportional to 399,750.12, 551,656.62 and 218,462.14 is: 301,478.55
Step by Step Solution
- Step 1: Write the proportion equation
399,750.12 : 551,656.62 = 218,462.14 : x - Step 2: Convert to fraction form
399,750.12/551,656.62 = 218,462.14/x - Step 3: Cross multiply
399,750.12x = 551,656.62 × 218,462.14 - Step 4: Simplify right side
399,750.12x = 120,516,085,750.37 - Step 5: Solve for x
x = 120,516,085,750.37/399,750.12 - Step 6: Final answer
x = 301,478.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.