Finding the Fourth Proportional to 260,569.08, 390,753.99 and 142,177.14
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Solution
The fourth proportional to 260,569.08, 390,753.99 and 142,177.14 is: 213,211.35
Step by Step Solution
- Step 1: Write the proportion equation
260,569.08 : 390,753.99 = 142,177.14 : x - Step 2: Convert to fraction form
260,569.08/390,753.99 = 142,177.14/x - Step 3: Cross multiply
260,569.08x = 390,753.99 × 142,177.14 - Step 4: Simplify right side
260,569.08x = 55,556,284,741.79 - Step 5: Solve for x
x = 55,556,284,741.79/260,569.08 - Step 6: Final answer
x = 213,211.35
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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.