Finding the Fourth Proportional to 260,058.99, 390,201.18 and 91,699.59
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Solution
The fourth proportional to 260,058.99, 390,201.18 and 91,699.59 is: 137,589.12
Step by Step Solution
- Step 1: Write the proportion equation
260,058.99 : 390,201.18 = 91,699.59 : x - Step 2: Convert to fraction form
260,058.99/390,201.18 = 91,699.59/x - Step 3: Cross multiply
260,058.99x = 390,201.18 × 91,699.59 - Step 4: Simplify right side
260,058.99x = 35,781,288,223.52 - Step 5: Solve for x
x = 35,781,288,223.52/260,058.99 - Step 6: Final answer
x = 137,589.12
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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.