Finding the Fourth Proportional to 340,361.79, 469,710.45 and 187,415.79
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Solution
The fourth proportional to 340,361.79, 469,710.45 and 187,415.79 is: 258,639.95
Step by Step Solution
- Step 1: Write the proportion equation
340,361.79 : 469,710.45 = 187,415.79 : x - Step 2: Convert to fraction form
340,361.79/469,710.45 = 187,415.79/x - Step 3: Cross multiply
340,361.79x = 469,710.45 × 187,415.79 - Step 4: Simplify right side
340,361.79x = 88,031,155,058.01 - Step 5: Solve for x
x = 88,031,155,058.01/340,361.79 - Step 6: Final answer
x = 258,639.95
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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.